Results
57-25-02: 57-25-02 HELIO: Applies to Model H-391B Aircraft Serial Numbers 001 Through 055. Compliance required as indicated. Cracks have been found in the fin front spar underneath the steel attachment fittings holding the stabilizer to the fin. Cracks were also discovered in the flanges of the fins nose ribs second and third from the bottom. To preclude possible failure of the fin spar, the following inspections and rework are required: 1. Aircraft with less than 400 hours total time. (a) Inspect visually for cracks the fin front spar and lower nose ribs within the next 100 hours of operation and every 100 hours thereafter until reinforced as described in Helio Service Bulletin No. 17 or equivalent. (b) If cracks are found they must be stopdrilled and the parts reinforced prior to further flight. (c) If no cracks are found reinforcement of the fin front spar and lower nose ribs attachments is required prior to the accumulation of 400 hours total time.2. Aircraft having 400 hours or more total time. (a) Visual inspection and reinforcement are required within the next 25 hours flight time. If any cracks are found, they should be stop-drilled prior to adding the reinforcements. (Helio Service Bulletin No. 17 covers this subject.)
95-15-52: This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) T95-15-52 that was sent previously to all known U.S. owners and operators of certain Boeing Model 747-100 and -200 series airplanes by individual telegrams. This AD requires a revision of the Airplane Flight Manual (AFM) and Airplane Weight and Balance Supplement to restrict cargo loading to a certain level. This AD also provides for the removal of the restrictions following accomplishment of a modification of the longitudinal floor beams. This amendment is prompted by a determination that inadequate strength in the floor beams exists on certain airplanes that have been modified for cargo configurations. The actions specified by this AD are intended to prevent failure of the longitudinal floor beams, which may cause the keel beam to fail and result in rupture of the fuselage.
95-23-12: This amendment adopts a new airworthiness directive (AD) that applies to The New Piper Aircraft, Inc. (Piper) Model PA-46-350P airplanes. This action requires installing a placard (to the right of the manifold pressure gauge in full view of the pilot) that specifies manifold pressure limits, and incorporating a revision into the Limitations section of the Pilot's Operating Handbook (POH). The actions specified by this AD are intended to prevent fatigue damage to the propeller caused by operating above certain manifold pressure limits.
2021-02-14: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by a report that the necessary sealant was not applied to the side of body (SOB) slot as a result of a production drawing that provided unclear SOB slot sealant application instructions. This AD requires a general visual inspection for insufficient sealant in the SOB slot, and related investigative and corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
2004-03-01: The FAA is superseding an existing airworthiness directive (AD) for a certain Air Cruisers Company Emergency Evacuation Slide/Raft System. That AD currently requires a one-time unpacking and subsequent repacking of the slide/raft systems, identified by basic part number (P/N) with dash numbers, and serial numbers (SNs) listed in the AD, and mandates repacking of all other slide/raft systems of the same design at the next required normal maintenance schedule of the slide/raft system. This AD contains the same requirements but replaces the specific slide/raft system P/N dash numbers with the word "-series", reduces the number of affected slide/raft systems to the SNs identified in paragraph (g) of the AD, and eliminates mandating the utilization of the applicable Folding Procedures for subsequent repacking of all slide/raft systems of the same design during the normal scheduled maintenance. This AD is prompted by recent information received that Air Cruisers Company has made modifications which have added new dash numbers to the slide/raft system basic P/N. This has affected some of the SN slide/raft systems listed in the AD. We are issuing this AD to prevent failure of the slide/raft to properly inflate, which could impede the emergency evacuation of passengers in the event of an airplane emergency. \n\nDATES: This AD becomes effective March 11, 2004. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of March 11, 2004. The incorporation by reference of certain other publications, as listed in the regulations, was approved previously by the Director of the Federal Register as of March 7, 2003 (68 FR 4897; January 31, 2003).
2010-11-03: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: In the past, some operators have reported difficulties to pressurise the hydraulic reservoirs, due to leakage of the Crissair reservoir air pressurisation check valves. * * * The leakage of the check valves was caused by an incorrect spring material. The affected Crissair check valves * * * were then replaced with improved check valves P/N [part number] 2S2794-1 * * *. More recently, similar issues were again reported on aeroplanes with Crissair check valves P/N 2S2794-1 installed. The investigations * * * have shown that a spring, mounted inside the valve, does not meet the Airbus type design specifications. This situation, if not corrected, can cause hydraulic system functional degradation, possibly resulting in reduced control of the aeroplane when combined with an air duct leak, air conditioning system contamination or, if installed, malfunction of the fire extinguishing system in the Class `C' cargo compartment. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products.
2010-09-10: We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: AD CF-2002-12 [which corresponds to FAA AD 2003-04-21, amendment 39-13070] mandated installation of revised overwing emergency exit placards showing that the exit door should be opened and disposed from a seated position. However, it was later discovered that the new placards illustrated an incorrect hand position for removal of the exit upper handle cover. These incorrect instructions could cause difficulty or delay when opening the overwing emergency exit. As a result, the timely and safe evacuation of passengers and crew may be impeded. We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective June 3, 2010. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of June 3, 2010. On April 4, 2003 (68 FR 9509, February 28, 2003), the Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD.
2021-04-02: The FAA is superseding Airworthiness Directive (AD) 2020-04- 22, which applied to certain Dassault Aviation Model FALCON 2000EX airplanes. AD 2020-04-22 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD continues to require the actions in AD 2020-04-22 and also 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. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on these products.
2010-10-24: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: During the overhaul of a Main Landing Gear (MLG) of a Falcon 2000, the sleeve on the hydraulic flow restrictor in the shock absorber was found displaced, because of the rupture of its three retaining screws. * * * Failure of the retaining screws has been determined to be the final phase of a slow unscrewing process under normal operational conditions. The unsafe condition only exists once the three screws have failed. * * * * * The unsafe condition is failure of three retaining screws of the MLG shock absorber, which could adversely affect the structural integrity of these airplanes. We are issuing this AD to require actions to correct the unsafecondition on these products.
57-08-01: 57-08-01 BELL: Applies to All 47 Series Helicopters With Tail Rotor Drive Shafts, P/N 47-644-115-1, 47-644-126-3, 47-644-172-3, 47-644-177-1, 47-644-179-7, 47-644-180-1, 47-644- 186-1, 47-644-187-1, 47-644-187-5, and 46-644-214-1, Having Less Than 100 Hours Service Time and All Spares of These Part Numbers. Compliance required as indicated. Due to suspected defective materials, the listed tail rotor drive shafts must be inspected for evidence of longitudinal cracks, as follows: 1. Inspect all spare shafts by magnaflux methods immediately. 2. Shafts installed on helicopters and having less than 100 hours service time must be thoroughly cleaned and inspected daily with at least a 10-power magnifying glass, and inspected by magnaflux methods not later than the next 10 flying hours. The daily inspections may be discontinued upon completion of the magnaflux inspection. 3. Spare shafts and helicopters delivered from Bell after April 15, 1957, have these inspections accomplished and may be identified by a double interlocking magnaflux stamp in approximately the centers of the shafts. (This AD covers the same inspections required by CAA telegraphic instructions, dated April 12 and 17, 1957.)
2004-03-03: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Fokker Model F.28 Mark 0070 and 0100 series airplanes. This action requires revising the applicable airplane flight manual to provide the flightcrew with more restrictive procedures for operating in icing conditions. This action is necessary to ensure that the flightcrew is aware of the procedures required to prevent ice from contacting the ice impact panels on the engine fan case. Such contact could result in a panel coming loose during flight and blocking the bypass flow through the engine outlet guide vanes, and consequent reduction of the engine thrust, resulting in insufficient thrust to maintain flight. This action is intended to address the identified unsafe condition.
2021-02-15: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747- 200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR series airplanes. This AD was prompted by reports of inboard foreflap departures from the airplane. This AD requires repetitive replacement of certain parts; a general visual inspection to determine production configuration for certain parts; a repetitive lubrication of certain parts and a repetitive general visual inspection of certain parts for any exuding grease; repetitive detailed inspections of certain parts for loose or missing attachment bolts, cracks or bushing migration, cracks or gouges, or broken, binding, or missing rollers; repetitive detailed inspections of certain parts for cracks or corrosion; repetitive lubrication; and on-condition actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
54-22-01: 54-22-01 LOCKHEED: Applies to Models 49, 649, 749, and 1049 Airplanes as Noted in Referenced Service Bulletins. Compliance required by April 1, 1955. A recent engine fire resulted in a premature failure of a flexible hose in the feathering line and in penetration of fire from zone 1 into zone 2. 1. To increase the fire resistance integrity of the propeller feathering line between the pump and the governor, replace the existing flexible hose assemblies meeting current fire resistance requirements. The following Lockheed Service Bulletins cover this subject: No. 49/SB-786 for Model 049 through 749 airplanes and No. 1049/SB-2195 for Model 1049 airplanes. The following hose assemblies may also be considered acceptable for this application: (a) Aeroquip 680-10S hose assemblies with Aeroquip 304 protective sleeves over end fittings. (b) Resistoflex - SSFR-3800-10 hose assemblies. 2. To increase the fireproof integrity of the zone 1 fire seal diaphragm against burn-through into zone 2 in the event of a power section fire install steel plates over the lower engine cowling longerons adjacent to the diaphragm. The following Lockheed Service Bulletins cover this subject: No. 49/SB-760 for Model 649/749 airplanes and No. 1049/SB-2115 for Model 1049 airplanes.
95-15-01: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes equipped with over-wing escape slides, that currently requires modification of the trailing edge panels and the aft flaps. That amendment was prompted by the results of functional tests of over-wing escape slides, which revealed that some slides were damaged when they were deployed across sharp corners on the trailing edge of the wing and the large gaps between the trailing edge panels of the wing. This amendment expands the applicability of the existing AD to include additional airplanes. The actions specified by this AD are intended to prevent damage to the over-wing escape slide, which could hinder inflation of the slide to a usable configuration during an emergency evacuation.
2021-02-17: The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A318 series airplanes; Model A319-111, A319-112, A319- 113, A319-114, A319-115, A319-131, A319-132, A319-133, A319-151N, and A319-153N airplanes; Model A320 series airplanes; and Model A321 series airplanes. This AD was prompted by the results of laboratory tests on non-rechargeable lithium batteries installed in emergency locator transmitters (ELT), which highlighted a lack of protection against certain currents that could lead to thermal runaway and a battery fire. This AD requires modifying a certain ELT by installing a diode in the airplane circuit connecting the ELT battery, 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.
2021-01-06: The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-200 and A330-300 series airplanes, and all Model A340-200 and A340-300 series airplanes. This AD was prompted by reports of hydraulic system failure due to fatigue failure of the screws attaching the manual valve to the ground service manifold (GSM). This AD requires, for certain GSMs, repetitive replacement of the hydraulic system GSM manual valve attachment screws having certain part numbers; and, for certain other GSMs with certain screws installed, replacement of those screws, 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.
97-01-08: This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes, that requires a one-time visual inspection to detect missing rivet heads or loose rivets of the applicable stringer-to-rib connections in the upper and lower wing skin, and repair, if necessary. In lieu of the one-time visual inspection or in addition to that inspection, the AD also requires replacement of certain rivets with certain new rivets in all applicable rib-to-stringer connections of the upper and lower wings. This amendment is prompted by reports of missing rivet heads at the rib-to-stringer connections of the upper and lower wing skin at stringers 5 and 6. The actions specified by this AD are intended to prevent reduced structural integrity of the wings that is caused by problems associated with missing and/or loose rivets.
2004-02-09: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 airplanes. This action requires a one-time visual inspection to determine if discrepant circuit breakers are installed, and corrective action if necessary. This action is necessary to prevent internal overheating and arcing of circuit breakers and airplane wiring due to long-term use and breakdown of internal components of the circuit breakers, which could result in smoke and fire in the flight compartment and main cabin. This action is intended to address the identified unsafe condition.
95-14-01: This amendment adopts a new airworthiness directive (AD) that applies to Glaser-Dirks Flugzeugbau GmbH (Glaser-Dirks) Model DG-100 sailplanes equipped with the main L4 fitting of the all flying tailplane. This action requires inspecting (one-time) the tailplane main fitting to ensure the part is accurately welded, and modifying the tailplane main fitting if not accurately welded. A report of tailplane main fitting failure on one of the affected sailplanes, where the welding did not completely cover the entire wall thickness of the fitting, prompted this action. The actions specified by this AD are intended to prevent loss of control of the sailplane because of tailplane main fitting failure.
2021-02-04: The FAA is adopting a new airworthiness directive (AD) for Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated 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 inboard flap fairings aft (IFFAs) having an incorrect shape, which may result in chafing between the IFFA and the associated front inboard tension rod. This AD requires an inspection of the IFFAs for the correct shape and chafing between the IFFA and the associated front inboard tension rod, with corrective action as necessary. This condition could lead to failure of the inboard flap drive arm with consequent asymmetric flap extension, resulting in reduced control of the airplane. The FAA is issuing this AD to address the unsafe condition on these products.
95-22-05: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Saab Model SAAB SF340A and SAAB 340B series airplanes. This action requires repetitive inspections to detect damage of the brake assembly and wheel assembly; repair, if necessary; and installation of a heat shield. This action also provides for an optional installation which, if accomplished, constitutes terminating action for the repetitive inspections. This amendment is prompted by reports of failure of the brake assembly due to separation of the stator clips from the stator disk. The actions specified in this AD are intended to prevent failure of the brake assembly, which could result in a brake fire.
2021-03-17: The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 airplanes. This AD was prompted by a report of smoke and signs of an overheating condition from the emergency light battery (ELB) due to excessive corrosion surrounding the internal lead acid batteries, which caused an electrical short circuit that led to the smoke and overheating condition. This AD requires an inspection to determine the last replacement date of the ELB, and replacement if necessary. This AD also requires the incorporation of a new maintenance task into the existing maintenance or inspection program. The FAA is issuing this AD to address the unsafe condition on these products.
2010-09-11: We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: In 1991, the UK Civil Aviation Authority (CAA) issued AD 015-08- 91 [which corresponds to FAA AD 93-01-11], requiring the accomplishment of inspections of, and in case of crack findings, corrective actions on, the wing top skin at rib `0' of pre- modification HCM00851C BAe 146 series aircraft in accordance with British Aerospace Service Bulletin (SB) 57-41 dated 26 July 1991. Recently, BAE Systems (Operations) Ltd has determined that a revised inspection programme for the wing top skin and joint strap at rib `0' on all BAe 146 and AVRO 146-RJ aircraft is necessary to assure the continued structural integrity of this area. Cracking of the wing centre section top skin, if undetected, could lead to structural failure and consequent loss of the aircraft. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective June 8, 2010. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of June 8, 2010. On March 2, 1993 (58 FR 6081, January 26, 1993), the Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD.
2021-02-16: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 717-200 airplanes. This AD was prompted by a report that during takeoff, both the captain's and first officer's airspeed indications froze at 80 knots. This AD requires modifying the air data heat (ADH) system to display the proper airspeed indications, testing, and any applicable corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
2004-02-05: This amendment adopts a new airworthiness directive (AD); applicable to certain Bombardier Model DHC-8-400, -401, and -402 airplanes; that requires replacing certain flight guidance modules with improved modules, and certain flight control electronic control units with improved units. This action is necessary to prevent loss of the autopilot or manual pitch trim, which may increase the workload of the flightcrew and, under certain conditions, could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.