Results
2020-21-18: The FAA is superseding Airworthiness Directive (AD) 2019-14- 09, which applied to all Airbus SAS Model A330-200 Freighter series airplanes. AD 2019-14-09 required repetitive detailed inspections, including functional testing, of the oxygen crew and courier distribution system (OCCDS) and replacement of affected part(s) if necessary. This AD retains the requirements of AD 2019-14-09 and requires replacement of all affected parts with improved serviceable parts, which is terminating action for the repetitive inspections, as specified in a European Union Aviation Safety Agency (EASA) AD, which will be incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
66-29-03: 66-29-03 SIAI-MARCHETTI: Amdt. 39-313 Part 39 Federal Register November 23, 1966. Applies to Model S.205 Airplanes, Serial Numbers 101 through 222, 224, 228, 229, 231 through 233. Compliance required as indicated. To detect cracks on the rear spar web at areas adjacent to the aileron outboard hinge bracket bolts, accomplish the following: (a) Within the next 10 hours' time in service after the effective date of this AD, unless already accomplished within the last 90 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection, visually inspect the rear spar web for cracks in accordance with Siai Service Bulletin No. 205B4, dated September 14, 1966. If cracks are detected during this inspection, comply with (b) of this AD before further flight. (b) Modify the rear spar by incorporating a reinforcement as set forth in paragraph (b) of Siai Service Bulletin No. 205B4, dated September 14, 1966, or an FAA-approved equivalent. (c) The repetitive inspections required by (a) of this AD may be discontinued after the rear spar is reinforced in accordance with (b) of this AD. This directive effective November 23, 1966.
2003-04-20: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Raytheon Model DH.125, HS.125, BH.125, and BAe.125 (U-125 and C-29A) series airplanes; and Model Hawker 800, Hawker 800 (including variant U-125A), Hawker 800XP, and Hawker 1000 airplanes; that currently requires an inspection for cracking or corrosion of the cylinder head lugs of the main landing gear (MLG) actuator and follow-on/corrective actions. This amendment expands the applicability of the existing AD to add an airplane model and further clarify the applicability and, for certain airplanes, to clarify the compliance time of the inspection requirements. This action is necessary to prevent separation of the cylinder head lugs, which could prevent the MLG from extending and result in a partial gear-up landing. This action is intended to address the identified unsafe condition.
2018-03-13: We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CT7-5A2, CT7-5A3, CT7-7A, CT7-7A1, CT7- 9B, CT7-9B1, CT7-9B2, CT7-9C and CT7-9C3 model turboprop engines. This AD requires initial and repetitive visual inspection and fluorescent- penetrant inspection (FPI) of the main propeller shaft. This AD was prompted by the failure of a main propeller shaft. We are issuing this AD to address the unsafe condition on these products.
97-01-11: 97-01-11 AIRBUS INDUSTRIE: Amendment 39-9882. Docket 92-NM-225-AD. Supersedes AD 96-20-02, amendment 39-9768. Applicability: Model A300 B2-1C, B2K-3C, B2-203, B4-2C, B4-103, and B4-203 series airplanes, on which Modification 2626 has not been installed; certificated in any category. Compliance: Required as indicated, unless accomplished previously. NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (f) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Compliance: Required as indicated, unless accomplished previously. To prevent fatigue cracking, which could result in reduced structural integrity of the airplane, accomplish the following: (a) For Model A300 B2-1C, B2K-3C, B2-203, B4-2C, and B4-103 series airplanes: Perform a detailed visual inspection to detect cracking of the fuselage, frame 47 at hole "I", in accordance with Airbus All Operator Telex (AOT) 53-02, dated November 2, 1992, at the times specified in paragraphs (a)(1) or (a)(2), as applicable. (1) For Model A300 B2-1C, B2K-3C, and B2-203 series airplanes: Perform the inspection prior to the accumulation of 15,000 total landings, or within 50 landings after November 4, 1996 (the effective date of AD 96-20-02, amendment 39-9768), whichever occurs later. (2) For Model A300 B4-2C and B4-103 series airplanes: Perform the inspection prior tothe accumulation of 18,700 total landings, or within 50 landings after November 4, 1996, whichever occurs later. (b) For Model A300 B4-203 series airplanes: Prior to the accumulation of 14,100 total landings, or within 50 landings after the effective date of this AD, whichever occurs later, perform a detailed visual inspection to detect cracking of the fuselage, frame 47 at hole "I", in accordance with Airbus All Operator Telex (AOT) 53-02, dated November 2, 1992. (c) If no crack is detected during the inspection required by paragraph (a) or (b) of this AD, repeat the detailed visual inspection at intervals not to exceed 200 landings. (d) If a crack is detected during any inspection required by paragraph (a), (b), or (c) of this AD, prior to further flight, repair in accordance with either paragraph (d)(1), (d)(2), or (d)(3) of this AD: (1) Repair in accordance with a method approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate; or (2) Repair in accordance with crack repair procedures specified in Airbus A300 Service Bulletin 53-265, Revision 2, dated March 10, 1992; or (3) Repair in accordance with crack repair procedures specified in Airbus Service Bulletin A300-53-299, dated December 14, 1993. (e) Conducting a repetitive Rototest inspection of hole "I" in accordance with Airbus A300 Service Bulletin 53-265, Revision 2, dated March 10, 1992, or Airbus Service Bulletin A300-53-299, dated December 14, 1993, constitutes terminating action for the detailed visual inspections required by this AD. If any crack is found during a Rototest inspection, prior to further flight, repair it in accordance with that service bulletin. (f) 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, FAA, Transport 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, Standardization Branch, ANM-113. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (g) Special flight permits may be issued in accordance with sections 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. (h) The visual inspection shall be done in accordance with Airbus All Operator Telex (AOT) 53-02, dated November 2, 1992. This incorporation by reference was approved previously by the Director of the Federal Register, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51, as of November 4, 1996 (61 FR 50988, September 30, 1996). Copies may be obtained from Airbus Industrie, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, 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. (i) This amendment becomes effective on February 10, 1997.
2011-25-05: We are adopting a new airworthiness directive (AD) for The Boeing Company Model 767 airplanes. This AD requires installing new panel assemblies in the main equipment center or on the forward cargo compartment sidewall and removing certain relays from some panels in the main equipment center. This AD also requires revising the maintenance program to incorporate Airworthiness Limitations (AWLs) No. 28-AWL-27 and No. 28-AWL-28. This AD also includes an alternative location for the installation of the new panel assemblies for airplanes that have the optional water system drain plumbing and changing the interconnecting wiring between the P141 panel and the P36 and P37 panels. For airplanes with a deactivated center fuel tank, this AD also requires an alternative functional test for the left and right override/jettison pumps. We are issuing this AD to prevent possible sources of ignition in a fuel tank caused by electrical fault or uncommanded dry operation of the main tank boost pumps and center auxiliary tank override and jettison pumps. This AD was prompted by fuel system reviews conducted by the manufacturer. An ignition source in the fuel tank could result in a fire or an explosion and consequent loss of the airplane.
2003-04-18: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-90-30 airplanes, that requires measuring the length of the wear indicator on the brake stack of the main landing gear (MLG) brake assembly to determine the degree of wear, and follow-on actions. This action also requires eventual replacement of the existing MLG brake assembly with a new, improved or modified assembly, which constitutes terminating action for any repetitive actions being performed per this AD. The actions specified by this AD are intended to prevent failure of the MLG brakes and consequent loss of braking capability, which could result in the airplane overrunning the runway during take-off or landing. This action is intended to address the identified unsafe condition.
2018-03-21: We are adopting a new airworthiness directive (AD) for certain Airbus Model A330-202, -203, -223, and -243 airplanes. This AD requires contacting the FAA to obtain instructions for addressing the unsafe condition on these products, and doing the actions specified in those instructions. This AD was prompted by a design review of the airplane configuration incorporating certain fire extinguisher bottles and an optional galley cooling rack installation, which revealed that the air cooling rack is installed too close to the supply hose of a high rate fire extinguishing bottle. We are issuing this AD to address the unsafe condition on these products.
76-03-04: 76-03-04 RAVEN INDUSTRIES, INC.: Amendment 39-2508. Applies to Raven Model RX-6 hot air balloons certificated in all categories. Compliance required before further flight. To prevent cracking and breaking of the polyethylene gondola liner, accomplish the following: Install a placard on the instrument panel in clear view of the pilot, stating, "Operation limited to ground surface temperatures of 40 degrees F and above". The hot air balloon may be operated only when ground surface temperature is at or above 40 degrees F until modifications to reinforce the gondola liner, to be made available by Raven Industries, Inc., are installed. This amendment becomes effective February 13, 1976.
83-13-09 R1: 83-13-09 R1 McDONNELL DOUGLAS: Amendment 39-4679 as amended by Amendment 39-4744. Applies to certain McDonnell Douglas DC-10-15 and DC-10-30 airplanes, and all KC-10A airplanes, certified in all categories, which are listed in McDonnell Douglas DC-10 Service Bulletin 23-46, dated May 12, 1983, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, Compliance required within 30 days from the effective date of this AD unless already accomplished. \n\n\tTo prevent loss of communication transmission capability from airplane to ground, accomplish the following: \n\n\tA.\tModify the service and flight interphone audio system wiring in accordance with the Accomplishment Instructions in McDonnell Douglas DC-10 Service Bulletin No. 23-46, dated May 12, 1983, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. \n\n\tB.\tAlternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. \n\n\tC.\tSpecial flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of modifications required by this AD. \n\n\tAll persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director, Publications and Training, C1-750 (54-60). These documents also may be examined at FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California. \n\n\tAmendment 39-4679 became effective July 18, 1983. \n\n\tThis Amendment 39-4744 becomes effective October 27, 1983.
2003-04-12: This amendment adopts a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (Bell) model helicopters that requires modifying the auxiliary fin assemblies and revising the Limitations section of the Rotorcraft Flight Manual (RFM) to reduce the never-exceed speed (Vne) for a tail rotor pedal stop failure. This amendment is prompted by several incidents of main rotor blades contacting the top of the fin that have resulted in an upper tuning weight (weight) becoming loose. The actions specified by this AD are intended to prevent a main rotor blade from striking an auxiliary fin, loss of a tuning weight, impact with a tail or main rotor blade, and subsequent loss of control of the helicopter.
2003-04-22: This amendment adopts a new airworthiness directive (AD), that is applicable to Hartzell Propeller Inc. model HD-E6C-3B/E13890K propellers with certain serial numbers of model D-1199-2 propeller control units (PCU's) installed. This amendment requires initial and repetitive inspections for below-limit propeller flight idle blade angles, and, as a terminating action, removal of the affected PCU's from service and performance of a complete Major Periodic Inspection (overhaul) when the applicable time-since-new or time-since-overhaul limit is reached, or when any flight idle blade angle is below limits. This amendment is prompted by a review by Hartzell Propeller Inc. of the model D-1199-2 PCU overhaul procedures, that revealed several dimensional checks and a nondestructive evaluation were not performed on certain serial number PCU's during a Major Periodic Inspection (overhaul). The overhaul procedures are required to comply with the Airworthiness Limitation PCU Major PeriodicInspection (overhaul) directive. The actions specified by this AD are intended to prevent below-limit flight idle propeller blade angles that, if not corrected, could result in degraded aircraft performance and control.
98-06-11: This amendment adopts a new airworthiness directive (AD), applicable to certain de Havilland Model DHC-8-100 series airplanes, that requires a one-time visual inspection to determine the presence of block seals on the upper portions of the cabin/baggage compartment bulkheads, and installation of a new or serviceable block seal for any missing block seal. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent smoke contamination of the passenger and crew cabins, in the event of fire or smoke in the baggage compartment, due to a direct smoke path between the baggage compartment and the cabins.
55-17-01: 55-17-01 LOCKHEED: Applies to All Models 49, 149, 649, 749, and 1049 Airplanes. Compliance required by December 1, 1955, unless already accomplished. A recent failure of wing flap torque tube assembly, P/N 326605-3, on a Model 1049C is attributed to a defective bolt, P/N AN 23-19. Initial overtorque of the bolt is suspected as the cause of failure of the bolt. It is therefore necessary that all Constellation and Super Constellation airplanes be inspected to ascertain proper installation of bolts, including bolt torque, on all wing flap torque tubes. Proper torque value for the AN 23-19 bolts is 10 to 20 inch-pounds. Nut torque must be checked with a torque wrench and all overtorqued bolts replaced. If necessary, the next size longer bolt (P/N AN23-20) may be used to facilitate installation within proper torque tolerances. Washers may be used as required, but not to exceed two under the head or two under the nut, to prevent the nut from bottoming on the shank.
98-07-13: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767-200 and -300 series airplanes, that requires a one-time inspection for worn or broken wire bundles in the ceiling above the main passenger door and repair, if necessary; and relocation of the wire bundles to prevent chafing. This amendment is prompted by a report indicating that the opening of the main passenger door caused the door liner and a ceiling panel to chafe and ultimately break wires installed in this area. The actions specified by this AD are intended to prevent these wires from becoming worn or breaking, which could lead to the failure of several systems, such as the fuel shutoff valves, and may contribute to the inability of the flight crew to stop the flow of fuel to the engines in the event of an engine fire.
2018-03-12: We are adopting a new airworthiness directive (AD) for certain Airbus Model A318 series airplanes; Model A319 series airplanes; Model A320-211, -212, -214, -231, -232, and -233 airplanes; and Model A321- 111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This AD was prompted by reports of fatigue damage in the structure for the door stop fittings on certain fuselage frames (FR). This AD requires repetitive rototest inspections for cracking of the fastener holes in certain door stop fittings, and repair if necessary. We are issuing this AD to address the unsafe condition on these products.
55-22-02: 55-22-02 ERCO: Applies to 415-C, -CD and -D Aircraft Serial Numbers 113 Through 2468 for Fuselage Tank Replacement; Serial Numbers 113 Through 2622 For Wing Tank Replacements. Inspection required each 25 hours; replacement at time leakage discovered. Unless the terneplate fuselage fuel tank has been replaced with a stainless steel tank and the terneplate wing fuel tanks replaced with aluminum alloy or stainless steel tanks, the tanks should be inspected frequently for signs of leakage at intervals not greater than 25 hours. If tank leakage is observed, the tank should be replaced with one of stainless steel or aluminum alloy, as required, before the next flight. Erco Service Department Bulletins No. 10 and No. 10A and Memorandums No. 31 and 43 pertain to the inspection and replacement of these tanks. This supersedes AD 47-50-10.
83-07-19: 83-07-19 WYTWORNIA SPRZETU KOMUNIKACYJNEGO PZL-MIELEC: Amendment 39-4621. Applies to Model PZL M18 (Serial Numbers 1Z005-11 through 1Z005-14) airplanes certificated in any category. Compliance: Required within the next 100 hours time-in-service after effective date of this AD, unless already accomplished. To prevent loss of primary flight control about the airplane roll axis, accomplish the following: a) Replace the connecting segment of the aileron push rods with Part No. 3-26x1- 430 ZN-72/L-381-307 as prescribed in Mandatory Bulletin No. I/012/81 dated 4/81. b) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. c) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium.
98-07-11: This amendment adopts a new airworthiness directive (AD) that is applicable to GKN Westland Helicopters Limited (Westland) WG-30 series 100 and 100-60 helicopters. This action requires an initial visual inspection and replacement, if necessary, of all main rotor head tie-bars. Thereafter, this AD requires, at intervals not to exceed 220 hours time-in-service (TIS), replacing each main rotor head tie-bar (tie-bar) with an airworthy tie-bar. This amendment is prompted by an accident on a similar model military helicopter in which a tie-bar failed; it is suspected that the military helicopter involved in the accident exceeded the power-off transient rotor speed limitation. This condition, if not corrected, could result in failure of a tie-bar, loss of a main rotor blade, and subsequent loss of control of the helicopter.
83-03-02 R1: 83-03-02 R1 ALLISON GAS TURBINE OPERATIONS/DETROIT DIESEL ALLISON (ALLISON): Amendment 39-4560 as amended by Amendment 39-4814. Applies to all Model 250-C20, -C20B, -C20C (T63- A720), -C20F, -B17, -B17B, -B17C, and -B17D engines equipped with the following slotted third stage turbine wheels: PART NO. TYPE OF SHROUD PART NO. TYPE OF SHROUD 6887113 Full slot 6898823 Crimped full slot 6888633 Full slot 6899364 Crimped full slot 6896863 Crimped full slot 6899406 Crimped center slot 6898551 Center slot 6899415 Crimped center slot 6898567 Center slot 6899416 Crimped center slot 6898733 Center slot 6899417 Crimped center slot 6898743 Center slot 6899418 Crimped center slot 6898753 Center slot 6899419 Crimped center slot 6898763 Center slot Accomplish the following to prevent possible engine power loss resulting from partial blade and/or shroud separation of slotted third stage turbine wheels: 1. Compliance required,as indicated, unless already accomplished: Remove from service and replace affected turbine wheels per the accomplishment instructions provided in Allison Commercial Engine Alert Bulletin CEB-A-1174/1146, Revision 3 dated January 26, 1984, or FAA approved equivalent, in accordance with the following schedule: Wheel Time Since New (TSN) - Hours Remove 1650 or more Within the next 100 hours time in service. 1000 or more and less than 1650 Within the next 400 hours time in service, or prior to exceeding 1750 hours TSN, whichever comes first. More than 500 and less than 1000 Within the next 600 hours time in service, or prior to exceeding 1500 hours TSN, whichever comes first. 500 or less Within the next 850 hours time in service, or prior to exceeding 1100 hours TSN, whichever comes first. 2. Compliance required not later than August 12, 1983, unless already accomplished: a. Placards, markings, or flight manual changes shall be provided to flight crews to avoid sustained operation of all affected engines between 90 and 98 percent N2, except during transients, while maintaining safe flight practices. This restriction also applies to autorotation practice and engine idle during engine-out simulation on multiengine aircraft. b. During all ground operation of affected turbine wheels installed in 250-C20, -C20B, C20C (T63-A720 engines, the engine N1 speed must be maintained at ground idle, except during transient operations, when performing required operational checks, or in high or gusty wind conditions, or where safety would be adversely affected. Placards, markings, or flight manual changes shall be used to advise flight crews of the ground operating restriction. c. During all ground operation of affected turbine wheels installed in 250-B17, -B17B, -B17C engines, the engine N2 speed must be maintained below 90 percent N2 r.p.m., except during transient operation, when performing required operational checks or in high or gusty wind conditions, or where safety would be adversely affected. Placards, markings, or flight manual changes shall be used to advise flight crews of the ground operating restriction. Upon request of the operator, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Chicago Aircraft Certification Office, FAA, Central Region. Special flight permits may be issued in accordance with FAR's 21.197 and 21.199 to operate aircraft to a base where compliance with this AD can be accomplished. The manufacturer's specifications and procedures identified and described in this directive 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 Allison Gas Turbine Operations, General Motors Corporation, Indianapolis, Indiana 46206-0420. These documents may also be examined at the New EnglandRegional Office, 12 New England Executive Park, Burlington, Massachusetts 01803. A historical file on this AD is maintained by the FAA at the New England Regional Office. This AD supersedes Amendment 39-3011, 42 FR 43969, AD 77-18-03. Amendment 39-4560 became effective June 13, 1983. This Amendment 39-4814 becomes effective February 28, 1984.
2003-04-06: This amendment adopts a new airworthiness directive (AD) that is applicable to various aircraft equipped with a certain Honeywell Primus II RNZ-850/-851 Integrated Navigation Unit. As one alternative for compliance, this action provides for a one-time inspection to determine whether a certain modification has been installed on the Honeywell Primus II NV850 Navigation Receiver Module, which is part of the Integrated Navigation Unit. In lieu of accomplishing this inspection, and for aircraft found to have an affected navigation receiver module, this action provides for revising the aircraft flight manual to include new limitations for instrument landing system (ILS) approaches. This action is necessary to ensure that the flightcrew has an accurate glideslope deviation indication. An erroneous glideslope deviation indication could lead to the aircraft making an approach off the glideslope, which could result in impact with an obstacle or terrain. This action is intended to address the identified unsafe condition.
2003-04-07: This amendment adopts a new airworthiness directive (AD) that applies to all British Aerospace Model HP.137 Jetstream Mk.1, Jetstream Series 200, Jetstream Series 3101, and Jetstream Model 3201 airplanes. This AD requires you to repetitively inspect the horizontal and vertical stabilizer attachment fittings and associated hardware for corrosion and wear (damage). If damage is found, this AD also requires you to repair or replace the damaged parts. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by this AD are intended to detect and correct damage on the horizontal and vertical stabilizer attachment fittings and associated hardware, which could result in failure of the attachment fittings. Such failure could lead to flutter and subsequent structural failure of the empennage.
98-06-36: This amendment adopts a new airworthiness directive (AD) that is applicable to Eurocopter France Model SA341G and SA342J helicopters. This action requires inspecting the tail gearbox support tripod (support tripod) for cracks. This amendment is prompted by reports of cracks that were discovered during routine maintenance inspections. The actions specified in this AD are intended to detect cracks at the welds of the tail gearbox support tripod, which could cause failure of one or more of the tripod arms, subsequent separation of the tail gearbox, and loss of control of the helicopter.
2011-27-09: We are adopting a new airworthiness directive (AD) for Socata Model TBM 700 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as installation of the wrong (switched) aileron control cables in the wing. This unsafe condition could lead to restricted movement of the aileron, resulting in reduced control of the airplane. We are issuing this AD to require actions to address the unsafe condition on these products.
98-06-37: This amendment adopts a new airworthiness directive (AD) that applies to certain Alexander Schleicher Segelflugzeugbau (Alexander Schleicher) Model ASK-21 sailplanes. This AD requires replacing any tow release cable assembly that does not have a swivel-type end with a cable assembly that does have a swivel-type end. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to prevent the inability to release the tow rope because of the design of the cable assembly, which could result in loss of control of the sailplane during towing operations.