Results
2024-03-06: The FAA is superseding Airworthiness Directive (AD) 2021-20- 13, which applied to certain Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes. AD 2021-20-13 required repetitive lubrication and repetitive detailed visual inspections (DVI) and non-destructive test (NDT) inspections of the main landing gear (MLG) shock strut lower pins, and replacement if necessary. This AD continues to require the lubrication and inspections specified in AD 2021-20-13 until the MLG shock strut assembly is modified by replacing the trailing arm bushing and installing new dynamic joint components. This AD was prompted by a new design solution for this potential failure of the shock strut lower pin. The FAA is issuing this AD to address the unsafe condition on these products.
78-01-09 R2: 78-01-09 R2 SHORT BROTHERS LIMITED: Amendment 39-3114 as amended by Amendment 39-3167 is further amended by Amendment 39-3869. Applies to Model SD3-30 airplanes, Serial Numbers SH 3002, SH 3004 through SH 3007, inclusive, and SH 3009 through SH 3011, inclusive, certificated in all categories. To prevent inability to inflate de-icing boots of pneumatic deicing system on the empennage caused by water freezing in system plumbing, accomplish the following: (a) Prior to each flight in which the airplane may be subject to known icing conditions, manually drain the water that collects in the plumbing of the pneumatic deicing system to the empennage in accordance with Section 2 entitled "Accomplishment Instructions" of Short Brothers, Ltd., Alert Service Bulletin SD3-30-A04, Revision 1, dated February 15, 1979, or an FAA-approved equivalent, except that the water need only be drained once each day. In addition, place a placard in full view of the pilot in the cockpit stating: "The deicing system must be drained once each day prior to flight into known icing conditions." NOTE. For the requirements regarding the listing of compliance and method of compliance with this AD in the airplane's permanent maintenance record, see FAR 91.173. (b) Compliance with paragraph (a) of this AD may be terminated upon incorporation of automatic water drainage provisions in accordance with Short Brothers, Ltd., Modification Service Bulletin SD3-30-04 (modification 5332), Revision 2, dated February 15, 1979, or an FAA-approved equivalent. Amendment 39-3114 became effective January 19, 1978. Amendment 39-3167 became effective April 14, 1978. This Amendment 39-3869 becomes effective August 18, 1980.
2024-03-02: The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600- 2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
2005-07-22: The FAA is adopting a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 series airplanes. This AD requires revising the Limitations section of the airplane flight manual to advise the flightcrew to make sure the correct instrument landing system (ILS) identifier is included on the flight management system (FMS) flight plan before the flightcrew initiates an approach to landing with the autopilot engaged. This AD is prompted by reports that the airplane's autopilot may apply large- amplitude control inputs while following ILS guidance to a runway that is not included on the FMS flight plan. We are issuing this AD to prevent hazardous maneuvers close to the ground, which could result in an impact with an obstacle or terrain.
2024-04-02: The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, R44 II, and R66 helicopters. This AD was prompted by reports of helicopters losing a tail rotor blade (TRB) tip cap. This AD requires visually checking and inspecting certain part-numbered and serial-numbered TRB tip caps for evidence of corrosion and, depending on the results, removing the corrosion. This AD also requires removing all affected TRBs from service and prohibits installing them on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
78-14-03: 78-14-03 GLASER-DIRKS: Amendment 39-3255. Applies to Model DG-100 gliders, certificated in all categories. NOTE: This AD does not apply to the DG-100G glider. Compliance is required within the next 20 hours time in service after the effective date of this AD, unless already accomplished. To reduce the possibility of the horizontal stabilizer not being fully seated and secured to the vertical stabilizer during assembly, accomplish the following: (a) Modify The horizontal stabilizer attachment fitting by adding a plastic pin extension in accordance with Glaser-Dirks Technical Note No. 301/5 dated February 2, 1978, or an equivalent approved by the Chief, Aircraft Certification Staff, Europe, Africa, and Middle East Region. (b) Revise the Model DG-100 Service Manual as follows: (1) By adding a sentence to item 5 on page 18 relating to mounting the stabilizer that reads-- "The cockpit trim control should be in the aft position". (2) By adding to the amendments on page 2 the phrase-- "Assembly of the all flying tailplane, page 18". This amendment becomes effective July 11, 1978.
2005-07-16: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767-400ER, 777-200, and 777-300 series airplanes. This AD requires replacing, with new parts, the existing tie-down fitting studs that secure galleys, purser work stations, and closets to the seat tracks. This AD is prompted by a report that tie-down fitting studs were found damaged. We are issuing this AD to prevent a galley, purser work station, or closet from detaching from the tie-down fitting studs during an emergency landing, which could injure passengers or crewmembers, or obstruct escape routes and impede emergency evacuation.
2001-03-06: This amendment adopts a new airworthiness directive (AD), applicable to Raytheon (Beech) Model MU-300, MU-300-10, 400, and 400A series airplanes, that requires repetitive inspections of the bleed air supply tube assemblies for discrepancies; and replacement of the bleed air tube assembly with a new bleed air tube assembly, if necessary. In lieu of accomplishing the repetitive inspections, this AD also provides for a revision of the Airworthiness Limitations to incorporate, among other things, certain inspections and compliance times to detect discrepancies of the subject area; and corrective action, if necessary. This amendment is prompted by reports of broken wire braiding in the bellows assembly of the bleed air supply tube assembly due to premature failure from loading. The actions specified by this AD are intended to prevent the bleed air supply tube assembly from disconnecting and contacting other pneumatic or electrical systems of the airplane or expelling high temperature air on surrounding systems and structure. Such a condition could reduce the functional capabilities of the airplane or the ability of the flight crew to cope with adverse operating conditions.
2015-14-10: We are adopting a new airworthiness directive (AD) for PILATUS AIRCRAFT LTD. Model PC-12/47 and PC-12/47E 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 the aileron trim tab disconnecting above 10,000 feet altitude. We are issuing this AD to require actions to address the unsafe condition on these products.
2024-02-02: The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-401 and - 402 airplanes. This AD was prompted by reports that the saddle washer (radius filler) for the front and rear spar joints may have been incorrectly manufactured for several years. This AD requires inspecting the horizontal stabilizer to vertical joint for gaps and bending of the saddle washer and adjacent washers, and replacing parts if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
2024-01-52: The FAA is superseding Airworthiness Directive (AD) 2023-24-51 which applied to all H[eacute]licopt[egrave]res Guimbal Model Cabri G2 helicopters. AD 2023-24-51 was prompted by reports of a crack in the pilot cyclic stick base and required repetitively inspecting certain part-numbered pilot and co-pilot cyclic stick bases and, depending on the results, corrective action. AD 2023-24-51 also prohibited installing those pilot and co-pilot cyclic stick bases unless certain requirements were met. Since the FAA issued AD 2023-24-51, more cracks in the cyclic stick bases have been reported, including a crack in a cyclic stick base that had accumulated only 700 hours time-in-service (TIS). This AD requires the same actions as AD 2023-24-51 but reduces the compliance time for performing the initial inspection. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these helicopters. The FAA is issuing this AD to address the unsafe condition on these products.
2015-08-04: We are superseding Airworthiness Directive (AD) 99-01-05 R1, which applied to certain aircraft equipped with wing lift struts. AD 99-01-05 R1 required repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replacing any cracked wing lift strut fork; and repetitively replacing the wing lift strut forks at a specified time for certain airplanes. This new AD retains all requirements of AD 99-01-05R1 and adds additional airplane models to the Applicability section. This AD was prompted by a report that additional Piper Aircraft, Inc. model airplanes should be added to the Applicability section. We are issuing this AD to correct the unsafe condition on these products.
2005-07-18: The FAA is adopting a new airworthiness directive (AD) for the airplanes listed above. For certain airplanes, this AD requires inspecting to determine the airplane's cargo configuration, and reporting findings to the FAA. For airplanes modified in accordance with a certain STC or with a cargo configuration that deviates from the as-delivered configuration, this AD requires revising certain manuals and manual supplements to specify certain cargo limitations. This AD also requires relocating all cargo restraints on the main cargo deck. This AD is prompted by reports that deficiencies related to the cargo loading system may exist on all McDonnell Douglas Model DC-9-15F airplanes modified in accordance with STC SA1993SO. We are issuing this AD to ensure that cargo in the main cabin is adequately restrained and to prevent failure of components of the cargo loading system, failure of the floor structure, or shifting of cargo. Any of these conditions could cause cargo to exceed loaddistribution limits or cause damage to the fuselage or control cables, which could result in reduced controllability of the airplane.
88-23-02: 88-23-02 MESSERSCHMITT-BOLKOW-BLOHM (MBB) GmbH: Amendment 39- 6027. Applies to MBB BK-117 A-1, A-3, and A-4 series helicopters certificated in any category. (Docket No. 85-ASW-1) Compliance is required within 30 days after the effective date of this AD, unless already accomplished. To prevent possible hazards in flight associated with operation outside of approved operating limits, accomplish the following: (a) Apply new VNE placards Part Numbers 117-740131.97, 117-740131.98, 117- 740131.99, or 117-740131.100, in place of the existing VNE placard in accordance with instructions contained in MBB Alert Service Bulletin MBB-BK 117-70-101, dated April 11, 1988. (b) The placard required by paragraph (a) may be installed by a pilot who makes the appropriate maintenance record entries required by FAR Parts 43 and 91. (c) An equivalent method of compliance with this AD may be used when approved by the Manager, Rotorcraft Directorate, Aircraft Certification Service, FAA, Fort Worth, Texas 76193-0100, or by the Manager, Brussels Aircraft Certification Office, AEU-100, c/o American Embassy, Brussels, Belgium, APO New York 09667-1011. This procedure shall be accomplished in accordance with MBB Helicopter Alert Service Bulletin ASB-MBB-BK 117-70-101, dated April 11, 1988. 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 MBB, GmbH, Abt, Drehflugler, Postfach 801140, D-8000 Munchen 80, Federal Republic of Germany. Copies may be inspected at the Office of the Regional Counsel, FAA, 4400 Blue Mound Road, Fort Worth, Texas, or at the Office of the Federal Register, 1100 L Street, N.W., Room 8401, Washington, D.C. This amendment, 39-6027, supersedes AD 85-02-04, Amendment 39-4989 as amended by AD 85-02-04 R1, Amendment 39-5793. This amendment, 39-6027, becomes effective on November 28, 1988.
2023-26-06: The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes). This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate 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.
2005-07-08: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757-200 and -200PF series airplanes. This AD requires repetitive inspections and audible tap tests of the upper and lower skins of the trailing edge wedges on certain slats, and related investigative and corrective actions if necessary. This AD also provides an optional terminating action for the repetitive inspections and audible tap tests. This AD is prompted by a report of damage to the No. 4 leading edge slat. We are issuing this AD to prevent delamination of the leading edge slats, possible loss of pieces of the trailing edge wedge assembly during flight, reduction of the reduced maneuver and stall margins, and consequent reduced controllability of the airplane.
2015-13-11: We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 430 helicopters to require inspecting the tail rotor control tube assembly (control tube) and either repairing or replacing the control tube. This AD was prompted by two reports of failure of the control tube bonded clevis. The actions of this AD are intended to prevent failure of a control tube bonded clevis, which could lead to failure of the control tube and subsequent loss of helicopter control.
2015-08-01: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 757-200, -200PF, -200CB, and -300 series airplanes. This AD was prompted by numerous reports of unintended lateral oscillations during final approach, just before landing. This AD requires, depending on airplane configuration, installing new relays and bracket assemblies, inspecting to ensure that the new relays do not contact adjacent wire bundles, torquing the bracket assembly installation nuts and ground stud nuts, doing bond resistance tests between the bracket assemblies and the terminal lugs on the ground studs, and related investigative and corrective actions if necessary. We are issuing this AD to reduce the chance of unintended lateral oscillations near touchdown, which could result in loss of lateral control of the airplane, and consequent airplane damage or injury to flightcrew and passengers.
79-05-08: 79-05-08 BELL: Amendment 39-3429. Applies to Bell Model 212 helicopters, Serial Numbers 30501 through 30888, equipped with emergency flotation (ditching) equipment, certificated in all categories. (Airworthiness Docket No. 78-ASW-44.) Compliance required with 600 hours' time in service or six months after the effective date of this airworthiness directive (AD), whichever comes first, unless already accomplished. To preclude possible tearing, puncturing, and deflation of a float bag after a ditching, accomplish the following: Remove the four emergency float bags and install modified or new float bags having the following part numbers: Air Cruisers Number D24650-105, -106, -107, and -108 (Bell Number 212-050-207-5, -6, -7, and -8 respectively) or a B. F. Goodrich Number 7MA1002-5, -6, -7, and -8 (Bell Number 212-050-207-9, -10, -11, and -12 respectively). Air Cruisers or B. F. Goodrich float bags may be modified and reidentified as prescribed by Air Cruisers CompanyService Bulletin No. 120-78-1 dated May 5, 1978, or later FAA approved revision or by B. F. Goodrich, Engineered Systems Division, Service Bulletin No. 01 dated May 8, 1978, or later FAA approved revision, respectively. 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 the Product Support Department, Bell Helicopter Textron, P. O. Box 482, Fort Worth, Texas 76101. These documents may also be examined at the Office of the Regional Counsel, Southwest Region, FAA, 4400 Blue Mound Road, Fort Worth, Texas, and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington D.C., and at the Southwest Region Office in Fort Worth, Texas. (Bell Helicopter Textron Service Bulletin No. 212-78-9 pertains to this subject.) This amendment becomes effective April 16, 1979.
2005-07-06: The FAA is superseding an existing airworthiness directive (AD) for General Electric Company (GE) CF34-8C1 series and CF34-8C5 series turbofan engines, with certain serial number (SN) master variable geometry (VG) actuators installed. That AD currently requires initial and repetitive reviews of the airplane Maintenance Data Computer (MDC) for master VG actuator fault messages, and if the MDC is inoperative, reviews of the Engine Indication and Crew Alerting System (EICAS) for fault messages. That AD also requires replacing actuators reported faulty by the Full Authority Digital Engine Control (FADEC). This ad requires those same actions, and expands the applicability to additional actuators by part number (P/N) and SN. This AD also prohibits installation of affected master VG actuators onto any CF34- 8C1 and CF34-8C5 engine after the effective date of this AD. This AD results from the need to add to the list of affected parts, master VG actuators made by parts manufacturer approval (PMA). We are issuing this AD to prevent dual-channel electrical signal faults in the VG master actuator, which will cause an uncommanded reduction of thrust to idle with a subsequent loss of the ability to advance thrust above idle, and which will result in a multiengine loss of thrust if dual- channel faults occur on more than one engine simultaneously.
2024-01-07: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) that found the force limiter assemblies for the lateral control mechanism are not breaking out within the maximum design force requirements. This AD requires replacing affected force limiter assemblies and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
2005-07-03: The FAA is adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes; and Model DC-9-81 (MD-81) and DC-9-82 (MD-82) airplanes. This AD requires repetitive detailed inspections of the upper and lower caps of the rear spar of the left and right wings, and corrective action if necessary. This AD also provides an optional modification that would end the repetitive inspections. This AD is prompted by reports of fatigue cracks in the upper and lower caps of the wing spar. We are issuing this AD to detect and correct fatigue cracking in the upper and lower caps of the rear spar of the left and right wings, which could result in structural failure of the wings.
2005-07-07: The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A310 series airplanes; and Model A300 B4-600, B4- 600R, and F4-600R series airplanes, and Model C4 605R Variant F airplanes (collectively called A300-600). This AD requires one-time general visual, detailed, and tap test inspections for discrepancies in the structural integrity of the rudder and its attachments, and corrective actions if necessary. This AD is prompted by a report that, during cruise, a Model A310 series airplane lost most of its rudder, which was made from composite-fiber-reinforced plastic. Investigation revealed that most of the rudder, including the front spar portion above the three servo control actuators was missing. We are issuing this AD to prevent detachment of the rudder from the airplane, which could degrade airplane handling qualities and result in reduced controllability of the airplane.
2023-26-07: The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model GE90-90B, GE90-94B, GE90- 110B1, and GE90-115B engines. This AD was prompted by a manufacturer investigation that revealed certain high-pressure turbine (HPT) stage 1 disks, HPT stage 2 disks, forward HPT rotor seals, interstage HPT seals, and stages 7-9 compressor rotor spools were manufactured from powder metal material suspected to contain iron inclusion. This AD requires replacement of affected HPT stage 1 disks, HPT stage 2 disks, forward HPT rotor seals, interstage HPT seals, and stages 7-9 compressor rotor spools. The FAA is issuing this AD to address the unsafe condition on these products.
2015-12-11: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 767 and 777 airplanes. This AD was prompted by reports of uncommanded door closure of a large lower lobe cargo door. This AD requires inspecting for part numbers and serial numbers of the rotary actuators of the forward and aft large lower lobe cargo doors, as applicable, and corrective action if necessary. We are issuing this AD to detect and correct rotary actuators made with a material having poor actuator gear wear characteristics, which could result in failure of the rotary actuators for the forward or aft large lower lobe cargo doors and subsequent uncommanded door closure, which could possibly result in fatal injury to people on the ground.