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2014-16-14: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD was prompted by reports in which a single, undetected, erroneous radio altimeter output caused the autothrottle to enter landing flare retard mode prematurely on approach. This AD requires removing certain autothrottle computers and installing a new or reworked autothrottle computer. We are issuing this AD to prevent a single, undetected, erroneous radio altimeter output from causing premature autothrottle landing flare retard and subsequent loss of automatic speed control, which could result in loss of control of the airplane.
93-05-11: 93-05-11 SCHWEIZER AIRCRAFT CORPORATION AND HUGHES HELICOPTERS, INC.: Amendment 39-8515. Docket No. 92-ASW-47. Applicability: Model 269A helicopters with fuel injected engines; all Model 269A-1 and 269B helicopters; and Model 269C helicopters, serial numbers (S/N) 0004 through 1480 and 1482 through 1486; equipped with an engine-driven fuel pump drain tube assembly (tube assembly), part number (P/N) 269A8326-95, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent a restriction to the movement of the engine throttle control linkage that could result in loss of control of engine power due to tube assembly interference, accomplish the following: (a) Within 5 hours time in service after the effective date of this AD, perform a one-time inspection of the length of the tube assembly, P/N 269A8326-95, in accordance with Part I of Schweizer Aircraft Corporation (Schweizer) Service Bulletin B-235.1, dated March 20, 1992 (SSB). If the tube assembly length is less than 7.50 inches, before next flight, install tube assembly, P/N 269A8326-235, with a clamp, P/N MS21333-98, in accordance with Part III of the SSB. (b) Within 5 hours time in service after the effective date of this AD, and thereafter at intervals not to exceed 25 hours time in service from the last check, check the tube assembly, P/N 269A8326-95, for security and clearance from the throttle linkage as follows: (1) Move the throttle linkage from fully open to fully closed and verify that the tube assembly is not loose and does not interfere with movement of the throttle linkage. (2) If the tube assembly interferes with movement of the throttle linkage, before next flight-- (i) Install tube assembly, P/N 269A8326-235, with a clamp, P/N MS21333-98, in accordance with Part III of the SSB; or (ii) Secure tube assembly, P/N 269A8326-95, in accordance with Part II b of the SSB and conduct repetitive checks as prescribed by this paragraph. (3) After the initial check, the repetitive check contained in this paragraph may be performed by the pilot and must be recorded in accordance with FAR 43.9. (c) Within 6 months after the effective date of this AD, replace the tube assembly, P/N 269A8326-95, with an improved tube assembly, P/N 269A8326-235, and clamp, P/N MS21333-98, in accordance with Part III of the SSB. (d) Installation of the improved tube assembly, P/N 269A8326-235, and clamp, P/N MS21333-98, constitutes terminating action for the requirements of this AD. (e) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, New YorkAircraft Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Manager, New York Aircraft Certification Office. (f) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the helicopter to a location where the requirements of this AD can be accomplished. (g) The inspections and modifications shall be done in accordance with Schweizer Service Bulletin B-235.1, dated March 20, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Schweizer Aircraft Corporation, P.O. Box 147, Elmira, New York 14902. Copies may be inspected at the FAA, Office of the Assistant Chief Counsel, 4400 Blue Mound Road, Bldg. 3B, Room 158, Fort Worth, Texas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (h) This amendment becomes effective May 25, 1993.
2000-02-08: This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 series airplanes, equipped with ground spoiler actuators having part number 1059A0000-02, that requires removal of the gland attachment bolts of the ground spoiler actuator and replacement with new bolts installed with higher torque. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent hydraulic fluid leakage due to loose or broken gland attachment bolts, and consequent loss of the main hydraulic system.
87-25-01: 87-25-01 VALENTIN GmbH: Amendment 39-5762. Applies to Model Taifun 17E motor gliders certificated in any category. Compliance is required as indicated unless already accomplished. To prevent failure in the air brake, wheel brake, or rudder control systems, accomplish the following: (a) Within the next 10 hours time-in-service after the effective date of this AD and thereafter at intervals not to exceed 25 hours time-in-service after the last inspection, visually inspect the welded joints of the air brake actuating lever/torsion axle, actuating lever of brake cylinder/torsion axle, and pedal lever arms/pedal torsion axles, using a 5 power or greater magnifying glass, for cracks or deformation; reference Action 1 of Valentin TN No. 11/818, dated March 9, 1987. (b) If cracked or deformed parts are found during the inspection required by Paragraph (a) of this AD, before further flight, replace the damaged parts with serviceable parts of the same part number.(c) Within the next 10 hours time-in-service after the effective date of this AD, exchange Glider Flight Manual pages 36/37/40/46 for same pages, February 1987 edition, and Instructions for Continued Airworthiness page 64 for same page, February 1987 edition, in accordance with Action 2 of Valentin TN No. 11/818 dated March 9,1987. Upon request, an equivalent means of compliance with the requirements of this AD may be-approved by the Manager, Brussels Aircraft Certification Office, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 15 Rue de Ia Loi B-1040 Brussels, Belgium, or the Manager, New York Aircraft Certification Office, Aircraft Certification Division, New England Region, FAA 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office, or the Manager, New York Aircraft Certification Office, mayadjust the compliance time specified in this AD. Valentin TN No. 11/818, dated March 9, 1987; Glider Flight Manual pages 36/37/40/46, February 1987 edition; and Instructions for Continued Airworthiness page 64, February 1987 edition, identified and described in this document, are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Morris Aviation Ltd., Statesboro Airport, Box 718, Statesboro, Georgia 30458. These documents also may be examined at the Rules Docket, Office of the Regional Counsel, Room 311, FAA, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803, between the hours of 8:00 am. and 4:30p.m., Monday through Friday except federal holidays. This amendment becomes effective on December 3, 1987.
60-20-03: 60-20-03 LOCKHEED: Amdt. 202 Part 507 Federal Register September 28, 1960. Applies to All Model 188 Series Aircraft Serial Numbers 1002, 1004 Through 1102, 1104 Through 1126, 2001 Through 2014. Compliance required within 1,000 hours' time in service after September 28, 1960. Insufficient resistance to flammability of components of the AC Bus Transfer and Distribution Box has resulted in a fire. Temperatures within the AC Bus Transfer and Distribution Box and within the main electrical service center higher than that for which some of the equipment in these locations is designed contributes to over-temperature of the equipment. Accomplish those portions of Lockheed Electra Alert Service Bulletins 408 and 287, revision 1, summarized below or equivalent: (a) Within the AC Transfer and Distribution Box, replace the black vinyl covered flexible bus assemblies, which interconnect the circuit breakers, with jumpers made of MIL-W- 7139 wire. (b) Replace, with MIL-W-7139wire, all size 6, 8, 10 and 12 wires which route within and between sections of the AC Transfer and Distribution Box except power wires to propeller deice power relay. (c) Apply a fire retardant coating, Magna Coatings and Chemical Co. Laminar X- 500, to the exposed and accessible portion of the inside and outside of the following impregnated fiberglass boxes: AC Bus Transfer and Distribution Box and its covers; forward load center bus box and cover; forward load center circuit breaker shrouds; flap asymmetry control panel cover; hydraulic pump shroud boxes. (d) Replace, with molded melamine terminal blocks, the stepped terminal block assemblies which serve as busses in the three upper compartments of the AC Bus Transfer and Distribution Box. (e) Remove the short bus bars which serve as extensions for terminals T1 and T3 of relays No. 1 and No. 3. (f) Replace the bus bar assemblies on terminals T2 of relays 1 and 3 with a type which does not have plastic in compression.(g) Remove the short bus bars and terminal block assembly from terminals T1, T2 and T3 of relay No. 2. (h) Modify the terminal block assembly between the external power feeders and relay No. 6 to remove plastic in compression. (i) Within the AC Bus Transfer and Distribution Box, route the control wires for the generators separate from all power wires. (j) Relocate the essential bus alternate feeder circuit breaker to a housing to be attached to the left side of the AC Bus Transfer and Distribution Box. (k) Provide forced air cooling of the electrical load center by installing: two destratification fans; ducting from the fans to the AC Bus Transfer and Distribution Box; ducting and controller to regulate overboard dumping of heated air; ventilation holes in the AC Transfer and Distribution Box. Install a shield to cover hydraulic connectors between fuselage Stations 540 and 549.5. (The portions of Lockheed Electra Alert Service Bulletins 408 and 287, revision 1,not summarized above are also approved.) Revised December 8, 1960.
2014-16-09: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 707 airplanes, Model 720 and 720B series airplanes, Model 727 airplanes, and Model 737-100, -200, and -200C series airplanes. This AD was prompted by a report of a fire that originated near the first officer's area and caused extensive damage to the flight deck on a different airplane model. This AD requires replacing the low-pressure oxygen hoses with non-conductive low- pressure oxygen hoses in the flight compartment. We are issuing this AD to prevent electrical current from inadvertently passing through an internal, anti-collapse spring of the low-pressure oxygen hose, which can cause the low-pressure oxygen hose to melt or burn, leading to an oxygen-fed fire and/or smoke in the flight deck.
93-09-11: 93-09-11 BEECH: Amendment 39-8577. Docket 92-NM-240-AD. Applicability: Model 400A airplanes; serial numbers RK-2 through RK-33, inclusive; certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent reduced structural integrity of the aft fuel filler tank installation, accomplish the following: (a) Within 200 hours time-in-service after the effective date of this AD, inspect the aft fuel filler tank installation to verify installation of attachment clips, part numbers 128-920021-61 and 128-920021-63, in accordance with Beechcraft Service Bulletin 2468, dated October 1992. (1) If the attachment clips are installed, no further action is required by this AD. (2) If no attachment clips are installed, prior to further flight, install the attachment clips in accordance with the service bulletin. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Wichita Aircraft Certification Office (ACO), FAA, Small Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita ACO. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The inspection and installation shall be done in accordance with Beechcraft Service Bulletin 2468, dated October 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Beech Aircraft Company, P.O. Box 85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Small Airplane Directorate, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on June 17, 1993.
2014-16-15: We are adopting a new airworthiness directive (AD) for certain Turbomeca S.A. Makila 2A and Makila 2A1 turboshaft engines. This AD requires initial and repetitive visual inspections, and replacement of the splines of the high-pressure (HP) fuel pump/metering valve and the module M01 drive gear, if necessary. This AD was prompted by the failure of two HP fuel pumps that resulted in engine in-flight shutdowns. We are issuing this AD to prevent failure of the HP fuel pump, which could lead to an in-flight shutdown, damage to the engine, and forced landing or accident.
2000-02-14: This amendment supersedes Airworthiness Directive (AD) 98-13-10, which currently requires repetitively inspecting all engine exhaust muffler end plates (four total) for cracks on all Cessna Aircraft Company (Cessna) Model 182S airplanes, and replacing any muffler where an end plate is found cracked. AD 98-13-10 also requires fabricating and installing a placard that specifies immediate inspection of all engine exhaust muffler end plates any time the engine backfires upon start-up. This AD is the result of Cessna developing an improved design exhaust system for the Model 182S airplanes. This AD retains the actions of AD 98-13-10 on all affected airplanes, and requires replacing the exhaust system with an improved design exhaust system within a certain period of time, as terminating action for those requirements retained from AD 98-13-10. This AD also limits the effectivity to exclude those airplanes manufactured with the improved design exhaust system. The actions specified by this AD are intended to detect and correct damage to the engine exhaust mufflers caused by cracking and the high stresses imposed on the attachment of the exhaust system at the area the firewall, which could result in exhaust gases entering the airplane cabin with consequent crew and passenger injury.
93-23-12: 93-23-12 LEARJET, INC.: Amendment 39-8748. Docket 93-NM-191-AD. Applicability: Model 60 airplanes having serial numbers 60-002 through 60-021, inclusive, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent overheating of the auxiliary cabin and cockpit heaters, which could potentially result in a fire, accomplish the following: (a) Within 10 flight hours after the effective date of this AD, deactivate the auxiliary cabin and cockpit heating systems; and install a placard stating, "Cabin and Cockpit Heat Inop" adjacent to the AUX HT Switch (S44) on the co-pilot's switch panel; in accordance with Learjet Alert Service Bulletin SB A60-21-1, dated November 1, 1993. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Wichita Aircraft Certification Office (ACO), FAA, Small Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita ACO. (c) Special flight permits may be issued in accordance with section 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The deactivation and placard installation shall be done in accordance with Learjet Alert Service Bulletin SB A60-21-1, dated November 1, 1993. This incorporation by reference was approved by the Director of the Federal Register, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51, as of December 15, 1993 (58 FR 63060, November 30, 1993). Copies may be obtained from Learjet, Inc., P.O. Box 7707, Wichita, Kansas 67277-7707. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Wichita ACO, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on December 15, 1993.
52-04-08: 52-04-08 MARTIN: Applies to All Models 202 and 202A Aircraft. Compliance required not later than May 1, 1952. Relocate the anti-icing heater controls to the main bus. (Trans World Airlines Engineering Order 5759 covers this same subject.)
93-07-08: 93-07-08 AEROSPATIALE: Amendment 39-8540. Docket 92-NM-128-AD. Applicability: Model ATR42-300 and -320 series airplanes and Model ATR72-100 and - 200 series airplanes, as listed in Aerospatiale Service Bulletins ATR42-55-0005, Revision 2, dated October 28, 1991, and ATR72-55-1001, Revision 2, dated October 28, 1991; certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent reduced controllability of the airplane, accomplish the following: (a) Within 30 days after the effective date of this AD, remove the cotter pins on the left and right elevator tab hinges; recheck the torque of the nuts; and install correct size cotter pins, in accordance with Aerospatiale Service Bulletin ATR42-55-0005, dated November 9, 1990, or Revision 1, dated May 28, 1991, or Revision 2, dated October 28, 1991 (for Model ATR42-300 and -320 series airplanes); or Aerospatiale Service Bulletin ATR72-55-1001, dated November 9, 1990, or Revision 1, dated April 10, 1991, or Revision 2, dated October 28, 1991 (for Model ATR72-100 and -200 series airplanes); as applicable. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The removal and installation shall be done in accordance with the following Aerospatiale service bulletins, as applicable, which contain the specified effective pages: Service Bulletin Referenced and Date Page Number Revision Level Shown on Page Date Shown on Page ATR42-55-0005, November 9, 1990 1-7 Original November 9, 1990 ATR42-55-0005, Revision 1, May 28, 1991 1-3, 5, 7 4, 6 1 Original May 28, 1991 November 9, 1990 ATR42-55-0005, Revision 2, October 28, 1991 1-3, 4, 6 5, 7 2 Original 1 October 28, 1991 November 9, 1990 May 28, 1991 ATR72-55-1001, November 9, 1990 1-7 Original November 9, 1990 ATR72-55-1001, Revision 1, April 10, 1991 1-2, 5, 7 3-4, 6 1 Original April 10, 1991 November 9, 1990 ATR7-55-1001, Revision 2, October 28, 1991 1-2 3-4, 6 5, 7 2 Original 1 October 28, 1991 November 9, 1990 April 10, 1991 This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Aerospatiale, 316 Routede Bayonne, 31060 Toulouse, Cedex 03, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on May 26, 1993.
2014-16-16: We are adopting a new airworthiness directive (AD) for all Embraer S.A. Model ERJ 190-100 STD, -100 LR, -100 ECJ, -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes. This AD requires, for certain airplanes, retorquing and replacing the pylon outboard and inboard lower link fittings. For all airplanes, this AD requires repetitive retorquing of the pylon outboard and inboard lower link fittings. This AD was prompted by a report of a loose lower link assembly on the left and right pylons. We are issuing this AD to prevent loss of a shear pin on the pylon outboard and inboard lower link fittings, which could result in failure of the fitting and consequent separation of the engine from the wing.
2000-02-09: This amendment adopts a new airworthiness directive (AD) that is applicable to Agusta Model AB412 helicopters with certain rescue hoists installed. This action requires replacing the rescue hoist hook assembly retention pin (retention pin) and periodically inspecting the rescue hoist. This amendment is prompted by an incident in which a rescue hoist hook assembly separated from a helicopter due to a missing retention pin. The actions specified in this AD are intended to prevent separation of the rescue hoist hook assembly from the helicopter due to failure of the retention pin. Loss of the rescue hoist hook assembly could result in loss of the person on the rescue hoist. Also, with the loss of the weight of the hoist cable assembly, the rescue hoist cable could become entangled with a main rotor or tail rotor blade, and result in damage or separation of a rotor blade and subsequent loss of control of the helicopter.
70-15-18: 70-15-18 MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Amendment 39-1046. Applies to the Mitchell Century II, Century III (Serial Numbers 624 and below) and Stabilizer, automatic pilot and automatic aileron stabilizer instruments, and to Piper AutoControl III, Altimatic III and AutoFlite automatic pilot and automatic aileron stabilizer instruments installed in various light aircraft in accordance with the following Supplemental Type Certificates: AIRCRAFT MAKE SUPPLEMENTAL TYPE CERTIFICATE NUMBERS Aero Commander SA680SW Beech SA617SW SA742SW SA755SW SA800SW SA638SW SA745SW SA761SW SA824SW SA651SW SA754SW SA767SW SA837SW Cessna SA603SW SA624SW SA668SW SA784SW (See also Wren) SA606SW SA637SW SA669SW SA789SW SA607SW SA658SW SA709SW SA795SW SA621SW SA667SW SA737SW SA829SW deHavilland (See Riley 400) Helio SA615SW Maule SA693SW Piper SA511SW SA540SW SA596SW SA757SW SA525SW SA566SWSA662SW SA822SW SA532SW SA576SW SA707SW SA862SW SA533SW SA581SW SA756SW SA921SW Riley 400 (deHavilland modified per STC's SA120SO, SE163SO and SA164SO) SA676SW Wren (Cessna modified per SA791SW STC No. SA485SW) Compliance required within the next 25 hours' time in service after the effective date of this AD, unless already accomplished. To prevent slippage of servo bridle cable clamps and resultant binding of the control system, accomplish the following: Remove Servo Bridle Cable Clamps, Mitchell P/N 42A173 or 42A184, as applicable, and replace with new Servo Bridle Cable Clamps, Mitchell P/N 42A173-1 or 42A184-1, as applicable, in accordance with the installation instructions in Mitchell Industries, Inc. Service Bulletin No. MB-1 dated 2-11-68, revised as Edo-Aire Mitchell Service Bulletin No. MB-1 dated 6-1-70, or later FAA approved revision, or in accordance with instructions approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. The revised bulletin may be obtained from Edo-Aire Mitchell, P.O. Box 610, Mineral Wells, Texas 76067. This Amendment becomes effective August 31, 1970.
2022-18-14: The FAA is superseding Airworthiness Directive (AD) 2017-19- 13, AD 2018-24-04, and AD 2019-23-02, which applied to certain Airbus SAS Model A330-200 series, A330-200 Freighter series, and A330-300 series airplanes. ADs 2017-19-13, 2018-24-04, and 2019-23-02 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by the FAA's determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require the actions in AD 2019-23-02, adds airplanes to the applicability, and requires revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2014-15-21: We are superseding Airworthiness Directive (AD) 2006-26-06 for certain The Boeing Company Model 777-200 and -300 series airplanes equipped with Rolls-Royce engines. AD 2006-26-06 required repetitive inspections to detect cracks of the outer V-blades of the thrust reverser, and corrective action if necessary. AD \n\n((Page 48025)) \n\n2006-26-06 also provided for an optional terminating action for the repetitive inspections. This new AD adds, for airplanes on which the optional terminating action is done, repetitive inspections for cracking in the outer V-blade fittings of the hinge beam and latch beam ends of each thrust reverser half, and replacement of an affected thrust reverser half if necessary. This new AD also adds airplanes to the applicability. This AD was prompted by reports of cracked outer V- blade fittings at the hinge beam end of Rolls-Royce engine thrust reversers, on airplanes on which the optional terminating action was done. We are issuing this AD to preventseparation of a thrust reverser from the airplane during normal reverse thrust or during a refused takeoff, which could result in unexpected thrust asymmetry and a possible runway excursion.
2000-01-17: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-90 series airplanes, that requires a one-time detailed visual inspection to detect fatigue cracking of certain longerons and the attaching frames of the lower left nose; and repair, if necessary. This amendment also requires installation of a preventive modification. This amendment is prompted by several reports of fatigue cracking of certain longerons and the attaching frames. The actions specified by this AD are intended to prevent such fatigue cracking, which could result in reduced structural integrity of the fuselage, and consequent loss of pressurization of the airplane.
2000-01-15: This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. For certain airplanes, this action requires modification of the electrical power supply of the landing gear anti-skid unit. For certain airplanes, this action also requires a revision to the Airplane Flight Manual (AFM) to provide the flight crew with procedures for calculating the accelerate-stop distance for certain conditions, and installation of a new ground idle stop assembly and new placards on the top cover of the pedestal, which terminates the requirements for the AFM revision. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent interruption of the anti-skid system function, or inadvertent selection of reverse thrust during a rejected takeoff. Either of these conditions could result in reduced controllability of the airplane.
87-07-08: 87-07-08 LOCKHEED-GEORGIA COMPANY: Amendment 39-5592. Applies to Lockheed JetStar Model 1329 and JetStar Model 1329-25 series airplanes, equipped with an AiResearch Aviation Company Model GTCP 30-92 Auxiliary Power Unit (APU) in accordance with STC SA1043WE or STC SA3297WE, certificated in any category. Compliance required as indicated, unless previously accomplished. To minimize the potential for fuel fumes entering the passenger compartment, accomplish the following: A. Within the next 600 hours time-in-service or 12 months after the effective date of this AD, whichever occurs earlier: 1. Install an improved APU fuel supply shutoff valve, Valcor P/N V4700- 130, in accordance with AiResearch Aviation Company Service Bulletin No. 11.37, dated December 19, 1984, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. 2. Visually inspect the sealing joint of the fuel control governor cover for fuelleaks, seal (O-ring) extrusion, and cover distortion, and replace, if necessary, prior to further flight, in accordance with the AiResearch Aviation Company Service Bulletin mentioned above. B. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. C. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to the Lockheed-Georgia Company, 86 South Cobb Drive, JetStar Customer Support, Dept. 64-26, Zone 668, Marietta, Georgia, 30063; or AiResearch Aviation Company, Customer Support Department, 6201 West Imperial Highway, Los Angeles, California 90045. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at 4344 Donald Douglas Drive, Long Beach, California. This amendment becomes effective May 1, 1987.
2014-12-51: We are publishing a new airworthiness directive (AD) for Airbus Helicopters Model EC130B4 and EC130T2 helicopters, which was sent previously to all known U.S. owners and operators of these helicopters. This AD requires repetitively inspecting the Fenestron to tailboom junction frame (junction frame) for a crack. This AD is prompted by reports of a crack propagating through the junction frame on two EC130B4 helicopters. These actions are intended to detect a crack and to prevent failure of the junction frame, which could result in loss of the Fenestron and subsequent loss of control of the helicopter.
2014-15-04: We are adopting a new airworthiness directive (AD) for certain Saab AB, Saab Aerosystems Model SAAB 2000 airplanes. This AD was prompted by a report of rudder pedal restriction which was the result of water leakage at the inlet tubing of an in-line heater in the lower part of the forward fuselage. This AD requires deactivating the potable water system, or alternatively filling and activating the potable water system. We are issuing this AD to prevent rudder pedal restriction due to the pitch control mechanism becoming frozen as the result of water spray, which could prevent disconnection and normal pitch control, and consequently result in reduced controllability of the airplane.
2000-01-12: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 and 200) series airplanes, that currently requires repetitive inspections to detect cracks of a certain bulkhead web of the fuselage at certain locations, and repair, if necessary. This amendment revises the repetitive inspection intervals for certain airplanes, and requires modification or repair, as applicable. This amendment is prompted by the development of a modification that will adequately address the identified unsafe condition. The actions specified by this AD are intended to detect and correct fatigue cracking, which could result in uncontrolled depressurization of the airplane and/or reduced structural integrity of the fuselage.
85-10-05 R1: 85-10-05 R1 ROLLS-ROYCE LIMITED: Amendment 39-5063 as amended by Amendment 39-5239. Applies to Rolls-Royce RB211-22B and RB211-524B, -524C, and -524D series turbofan engines. Compliance is required as indicated unless already accomplished. To prevent an internal oil fire, failure of the low compressor rotor shaft, and subsequent low turbine rotor overspeed leading to an uncontained rotor failure, accomplish the following: Prior to December 31, 1987, incorporate low pressure rotor location bearing area modifications as specified in Rolls-Royce Mandatory SB RB211-72-6847, Revision 2, dated March 30, 1984, or FAA approved equivalent. Upon request, an alternate means of compliance may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, New England Region, Federal Aviation Administration, 12 New England Executive Park, Burlington, Massachusetts 01803. Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the AD can be accomplished. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Engine Certification Office, New England Region, may adjust the compliance time specified in this AD. The manufacturer's SB identified and described in this directive is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received the SB from the manufacturer may obtain copies upon request to Rolls-Royce Limited, Technical Publications Department, P.O. Box 31, Derby DE2 8BJ, England. The SB may also be examined at the office of the Regional Counsel, New England Region, Federal Aviation Administration, Rules Docket No. 84-ANE-14, 12 New England Executive Park, Burlington, Massachusetts 01803, weekdays between the hours of 8:00 a.m. and 4:30 p.m. except Federal holidays. Amendment 39-5063 became effective on July 23, 1985.This Amendment 39-5239 becomes effective on March 28, 1986.
78-18-06: 78-18-06 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-3296 is further amended by amendment 39-3498. Applies to Lockheed-California Company Model L-1011-385 Series airplanes certificated in all categories. Compliance required as indicated, unless previously accomplished. To prevent the transfer of potentially hazardous quantities of vapors from the engine compartment into the afterbody of the airplane, accomplish the following: (a) For airplanes with 7500 or more hours total time in service on the effective date of this AD, within the next 1000 hours time in service, inspect the center engine "S" duct flexible fire seal Part No. 1506933-101 per paragraph (c) below. (b) For airplanes with less than 7500 hours total time in service on the effective date of this AD, prior to the accumulation of 8500 hours total time in service, inspect the center engine "S" duct flexible fire seal per paragraph (c) below. (c) Visually inspect the center engine "S" duct flexible fire seal for depth of groove and/or tears per the procedures set forth in paragraph 2.A of Lockheed California Service Bulletin 093-54-030 dated March 28, 1978 (hereinafter referred to as SB 093-54-030). NOTE: Service Bulletin 093-54-030 dated March 28, 1978 and Service Bulletin 093-54-030, Revision 1, are suitable for demonstrating compliance with paragraphs (c) through (h) of this AD. (d) If there are no tears, and evidence of grooving is observed, or if groove depth is determined to be less than 0.035 inch using the procedures of paragraph 2.A of SB 093-54-030, the seal may be retained in service with performance of repetitive inspections at intervals not to exceed 1500 hours total time in service. (e) If there are no tears and seal is worn to a groove depth greater than 0.035 inch but less than 0.050 inch: (1) Continue worn part in service and reinspect within 1000 hours additional time in service; or (2) Repair seal per paragraph 2.C of Service Bulletin 093-54-030dated March 28, 1978 or per paragraph 2.D of Service Bulletin 093-54-030, Revision 1, and reinspect within 8500 hours additional time in service; or (3) Replace seal with like serviceable part per paragraph 2.B of SB 093-54- 030 and reinspect per paragraph 2.A of SB 093-54-030 within 8500 hours additional time in service. (f) If seal is worn to a groove depth equal to or greater than 0.050 inch but is intact, within 500 hours additional time in service, repair seals per paragraph 2.C of SB 093-54-030 or replace seal per paragraph 2.B of SB 093-54-030 and reinspect per paragraph 2.A of SB 093-54- 030 within 8500 hours additional time in service. (g) If seal is worn through or torn, within 250 hours additional time in service repair seal per paragraph 2.C of SB 093-54-030 or replace seal per paragraph 2.B of SB 093-54-030 and reinspect per paragraph 2.A of SB 093-54-030 within 8500 hours additional time in service. (h) Actions required per this AD may be terminated whenchafing protection (Belt Assembly Part Number 1619429-101) is installed per paragraph 2.D of SB 093-54-030 in conjunction with a new, used, or repaired center engine "S" duct flexible fire seal which meets the criteria of paragraph (d) or (e)(2) of this AD. Revert to routine maintenance/inspection practices. (i) Equvalent inspection procedures and repairs may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region. (j) Special flight permits may be issued in accordance with FARs 21.197 and 21.199 to operate aircraft to a base for accomplishment of inspections and/or maintenance required by paragraph (b) of this AD. (k) Upon request of operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, FAA Western Region may adjust the initial and repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for that operator. Amendment 39-3296 became effective October 13, 1978. This amendment, 39-3498, becomes effective June 25, 1979.