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90-03-10: 90-03-10 BELL HELICOPTER TEXTRON, INC. (BHTI); CALIFORNIA DEPARTMENT OF FORESTRY; GARLICK HELICOPTERS; HAWKINS AND POWERS AVIATION; HERCULES; INTERNATIONAL HELICOPTERS, INC.; LENAIR CORPORATION; OFFSHORE CONSTRUCTION; OREGON HELICOPTERS; PILOT PERSONNEL INTERNATIONAL; SMITH HELICOPTERS; SOUTHERN AERO CORPORATION; SOUTHWEST FLORIDA AVIATION; and WEST COAST FABRICATIONS: Amendment 39-8029. Docket No. 90-ASW-09. Final Rule of Priority Letter AD 90-03-10. Applicability: All Model 204B, 205A, 205A-1, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and TH-1L helicopters, certificated in any category, with aluminum tail rotor grips, P/N 204-011-728-19, installed. Compliance: Required before further flight, unless already accomplished. To prevent failure of a tail rotor grip, which could result in loss of tail rotor control, accomplish the following: (a) Determine the part numbers and serial numbers of the tail rotor grips installed on the helicopter. (b) If the tail rotor grip installed is P/N 204-011-728-19 and is identified with any serial number listed below, remove and replace the grip with an airworthy part before further flight: Serial Numbers: A3-66287 A3-66333 A3-66356 A3-66361 A3-66365 A3-66370 A3-66377 A3-67149 A3-67171 A3-67184 A3-67207 (c) In accordance with FAR Sections 21.197 and 21.199, the helicopter may be flown to a base where the inspection and grip replacement may be accomplished. (d) An alternate method of compliance which provides an equivalent level of safety, may be used if approved by the Manager, Rotorcraft Certification Office, Southwest Region, Federal Aviation Administration, Fort Worth, Texas 76193-0170, telephone (817) 624-5170. This Amendment (39-8029, AD 90-03-10) becomes effective on October 18, 1991, as to all persons except those persons to whom it was made immediately effective by Priority Letter AD 90-03-10 issued January 29, 1990, which contained this amendment.
2022-18-15: The FAA is adopting a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2C11 (Regional Jet Series 550) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600- 2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports of corrosion on fuel clamshell couplings installed in the fuel tank, and a determination that new or more restrictive airworthiness limitations are necessary. This AD requires removing and replacing the fuel clamshell couplings on certain airplanes, and 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.
2004-21-03: The FAA is adopting a new airworthiness directive (AD) for all Gulfstream Model G-1159, G-1159A, G-1159B, and G-IV series airplanes. This AD requires a one-time inspection of the left and right aileron and elevator actuators to determine the part and serial numbers of each actuator, repetitive inspections of suspect actuators to detect broken damper shafts, and replacement of any actuator having a broken damper shaft. This AD also requires that operators report any broken damper shaft they find to the FAA. This AD also provides an optional terminating action for the repetitive inspection requirements of this AD. This AD is prompted by reports of broken or cracked damper shafts within the aileron and elevator actuator assemblies. We are issuing this AD to detect and correct broken damper shafts, which could result in locking of an aileron or elevator actuator (hard-over condition), subsequent loss of aileron or elevator control, and consequent reduced controllability of the airplane.
2022-20-08: The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 B2K-3C, B2-203, B4-2C, and B4-203 airplanes. This AD was prompted by reports of cracking of the flight compartment aft window frame and adjacent fuselage skin. This AD requires require a one-time check for previously accomplished repairs of the window pane and adjacent fuselage panel, and applicable corrective actions, 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.
95-25-04: This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that currently requires an inspection and other specified actions to ensure that the ground stud assemblies at three locations of the airplane are installed properly and torqued to certain specifications, to verify the integrity of the components of the ground stud assemblies, and to detect heat damage in adjacent areas; and correction of any discrepancy. That AD was prompted by reports indicating that arcing occurred across the pins in the galley external power receptacle due to loose attach hardware on the ground stud. The actions specified in that AD are intended to ensure that the ground stud assemblies are attached correctly so that arcing will not occur. Such arcing, if not corrected, could result in heat damage to adjacent structure and a fire in the forward cargo compartment, the center accessory compartment, or the aft fuselagecompartment. This action would expand the applicability of the existing AD to include additional airplanes.
2004-21-04: The FAA is adopting a new airworthiness directive (AD) for certain Becker Flugfunkwerk GmbH AR 4201 VHF AM transceivers. This AD requires adding an aircraft flight manual (AFM) limitation to the Limitations Section of the AFM, and cockpit placard due to the intermittent malfunctioning of the transceiver, or removing the affected transceiver from service. This AD results from reports of crewmembers having difficulty communicating with Air Traffic Control and other aircraft due to the AR 4201 VHF AM transceiver's inability to block interference from transmitters operating on frequencies other than those set in the transceiver. We are issuing this AD to prevent difficulty in communicating with Air Traffic Control and other aircraft due to intermittent malfunctioning of the transceiver.
99-26-01: This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. This action requires a one-time inspection to verify the tension values of the aileron control cables of the left- and right-hand wings, and corrective actions, if necessary. This action also requires either replacement of the aileron control cables with new, improved aileron control cables, or replacement of the aileron control cables with new, improved aileron control cables and modification of the pulley bracket on the rear face of the bulkhead at frame station 3100. The FAA is issuing this AD in response to mandatory continuing airworthiness information issued by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent interference between the turnbuckles of the aileron control cables and the lightening holes, which could result in binding of the aileron control cables and consequent reduced controllability of the airplane.
2013-17-04: We are adopting a new airworthiness directive (AD) for various aircraft equipped with Rotax Aircraft Engines 912 A Series Engine. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as oil leaks in the intake channel in the area of the valve guide on some cylinder heads could increase the oil consumption and result in engine stoppage. We are issuing this AD to require actions to address the unsafe condition on these products.
2022-21-11: The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. Model 204B, 205A, and 205A-1 helicopters and various restricted category helicopters. This AD was prompted by a report of cracked main rotor blades (MRBs). This AD requires repetitive inspections of each MRB and removing any cracked MRB from service. The FAA is issuing this AD to address the unsafe condition on these products.
78-19-01: 78-19-01 ROLLS-ROYCE LIMITED (Formerly Rolls-Royce (1971) Limited): Amendment 39-3297. Applies to Model RB-211-22B engines which have high pressure turbine discs, part number and serial number as indicated, installed. Compliance is required as indicated, unless already accomplished. To ensure adequate life limit margin for, and to prevent failure of the high pressure turbine discs listed herein, accomplish the following: (a) Permanently remove from service the following high pressure turbine discs before or upon reaching the flight cycle life limit shown. Part No. Serial No. Revised Life Limit Flight cycles LK48423 CQDY 107 2900 LK48423 CQDY 140 2900 LK48423 CQDY 130 2900 LK48423 CQDY 133 2900 LK48423 CQDY 134 2900 LK48423 CQDY 233 2900 LK53204 CQDY 334 4350 LK53204 CQDY 345 4350 LK53204 CQDY 389 4350 LK53204 CQDY 417 3500 LK53204 CQDY 419 4350 LK53204 CQDY 426 4350 LK53204 CQDY 427 3500 LK53204 CQDY 436 2500 LK53204 CQDY 449 4350 LK53204 CQDY 540 4350 LK53204 CQDY 578 3000 LK53204 CQDY 579 3000 LK53204 CQDY 581 4350 LK53204 CQDY 583 3500 LK69209 A2 CQDY 592 4350 LK53204 CQDY 624 2900 LK53204 CQDY 625 4350 LK53204 CQDY 627 3500 LK53204 CQDY 630 3600 LK53204 CQDY 631 4350 LK53204 CQDY 655 3500 LK53204 CQDY 702 4350 LK53204 CQDY 703 3500 LK53204 CQDY 712 4350 LK53204 CQDY 730 3500 LK69209 CQDY 740 4350 LK62143 CQDY 757 2250 LK53204 CQDY 770 4350 LK53204 CQDY 771 4350 LK53204 CQDY 805 2400 LK58998 CQDY 958 2250 LK58998 CQDY 964 2250 LK53204 CQDY 965 2250 LK58998 CQDY 976 2250 LK58998 CQDY 989 2250 LK69213 CQDY 996 4360 LK58998 CQDY 998 2250 LK58998 CQDY 1002 1200 LK58998 CQDY 1037 2250 LK58998 CQDY 1076 2250 LK58998 CQDY 1140 2250 NOTE: Rolls-Royce Limited Service Bulletin RB.211-72-4300, Revision 3, dated May 12, 1978, pertains to this same subject. (b) Permanently remove from service the following high pressure turbine discs before or upon reaching 2900 flight cycles: Part No. Serial No. LK53203 CQDY 241 LK48424 CQDY 242 LK53203 CQDY 257 LK53195 CQDY 309 LK53204 CQDY 428 LK53204 CQDY 657 LK53204 CQDY 678 LK53204 CQDY 697 LK53204 CQDY 773 LK53204 CQDY 951 LK69210 CQDY 1227 LK69210 CQDY 1419 NOTE: Rolls-Royce Limited Service Bulletin RB.211-72-4304, Revision 2, dated June 3, 1977, pertains to this same subject. (c) In accordance with the provisions of FAR 21.197 and FAR 21.199 the aircraft may be flown to a base where the disc removals required by this AD may be performed. NOTE: For the purpose of this AD a flight cycle is considered to be an operating sequence consisting of engine starting, takeoff operation, landing and engine shutdown. This amendment becomes effectiveSeptember 25, 1978.