Results
2014-07-04R1: The FAA is revising airworthiness directive (AD) 2014-07-04 that published in the Federal Register to correct certain errors. AD 2014-07-04 applied to certain Sikorsky Model S-92A helicopters. The range of serial numbers in the Applicability section and a reference to the service information in the Required Actions section of the regulatory text are incorrect. This document corrects those errors. In all other respects, the original document remains the same.
2009-06-16: 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: It has been found the occurrence of failed bearings of the RAT [ram air turbine] generator, which may lead to a RAT generator failure. The RAT generator was designed to provide emergency electrical power to essential systems in case of loss of all other sources of aircraft AC electrical power. * * * * * Loss of emergency electrical power could result in reduced controllability of the airplane during in-flight emergencies. We are issuing this AD to require actions to correct the unsafe condition on these products.
80-26-51: 80-26-51 BOEING: Amendment 39-4072. Applies to Boeing Model 737 series airplanes, certificated in all categories, prior to line number 726. To prevent control system jamming, accomplish the following within the next 150 hours time-in-service after the effective date unless already accomplished, or unless the affected bolt assemblies have been removed and reinstalled since manufacture. \n\n\t1.\tInspect the bolt assemblies installed at the upper and lower clevis of each elevator power control unit input rod assembly for proper installation in accordance with Boeing Alert Service Bulletin 27A1109, dated December 11, 1980, or later FAA-approved revisions. Bolt assemblies not properly installed must be reinstalled in accordance with the service bulletin.\n \n\t2.\tAlternate methods of compliance with this Airworthiness Directive may be used when they are approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. \n\n\tThis amendment becomes effective April 1, 1981, and was effective earlier to those recipients of telegraphic AD T80-26-51, dated December 13, 1980.
79-03-04: 79-03-04 LOCKHEED: Amendment 39-3404. Applies to all Model 382 series aircraft with Calco manufactured ballscrew assembly, P/N 8353, installed in the main landing gear (MLG). Compliance required as indicated. To prevent the collapse of the MLG due to a failure of the ballscrew P/N 8353-25 lower mounting flange and consequently possible loss of the aircraft, accomplish the following: Within 10 hours time in service after the effective date of this AD and at each preflight thereafter on all airplanes with suspect P/N 8353 ballscrew assemblies, lower mounting flange P/N 8353-25 (castings only, not forgings), perform the repetitive visual check of the MLG Calco P/N 8353 Ballscrew Assembly in accordance with Lockheed Alert Service Bulletin A328-32-28 (NOTE: Four (4) ballscrew assemblies per airplane). The checks required by this AD may be performed by the flight crew. If cracks are detected or suspected in the lower mounting flange of the P/N 8353 ballscrew assembly as a result of the above service bulletin inspection requirements, replace the P/N 8353-25 casting with a serviceable forging prior to further flight. In addition to the above repetitive visual checks the following inspection of the P/N 8353-25 casting is required: 1. Prior to 50 hours time in service from the effective date of this AD, perform a Rockwell hardness test to determine that the P/N 8353-25 casting is within acceptable hardness limits of RC-35 to RC-45. If these limits are exceeded the P/N 8353-25 casting must be replaced prior to further flight except that if only one casting per aircraft is determined to be outside these limits, a ferry flight to a place of repair is permissible. 2. If the Rockwell hardness test confirms that the P/N 8353-25 casting is within the prescribed above limits, the casting must be replaced with a serviceable forging within 25 landings or 150 flight hours, whichever occurs first. NOTE: 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 Lockheed-Georgia Company, Marietta, Georgia 30063. These documents may also be examined at FAA, Southern Regional Office, 3400 Whipple Street, East Point, Georgia, 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 Southern Regional Office. This amendment is effective February 5, 1979.
2009-06-06: This airworthiness directive (AD) supersedes two existing ADs. One AD applies to certain Airbus Model A310-200 and -300 series airplanes. That AD currently requires repetitive inspections for cracking of the flap transmission shafts, and replacement of the transmission shafts if necessary. That AD also provides an optional terminating action for the repetitive inspections. The other existing AD applies to all Airbus Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310-200 and -300 series airplanes. That AD currently requires a one-time inspection of the trimmable horizontal stabilizer actuator (THSA), corrective actions if necessary, and follow-on repetitive tasks. This new AD also requires revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations and maintenance tasks for aging systems maintenance. ThisAD results from the manufacturer's determination that life limitations and maintenance tasks are necessary to ensure continued operational safety of the affected airplanes. We are issuing this AD to prevent reduced structural integrity of these airplanes due to the failure of system components. DATES: This AD becomes effective April 28, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of April 28, 2009. On August 29, 2006 (71 FR 42021, July 25, 2006), the Director of the Federal Register approved the incorporation by reference of Airbus Service Bulletin A300-27-6044, Revision 04, dated September 10, 2001; and Airbus Service Bulletin A310-27-2089, Revision 02, dated June 28, 2001. On June 20, 2006 (71 FR 28254, May 16, 2006), the Director of the Federal Register approved the incorporation by reference of Airbus Service Bulletin A310-27-2092, Revision 02, dated April 11, 2005; and Airbus ServiceBulletin A310-27-2095, dated March 29, 2000.
2005-01-17: The FAA adopts a new airworthiness directive (AD) to supersede AD 98-03-14, which applies to certain EXTRA Flugzeugbau GmbH (EXTRA) Model EA-300 and EA-300/S airplanes. AD 98-03-14 currently requires you to inspect the upper longeron cutout-bridge for cracks, to repair any cracks found, and to modify this area. This AD retains the actions of AD 98-03-14 and incorporates new service information. For owner/ operators of the affected airplanes that were able to do the modification required in AD 98-03-14, no further action is required. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to detect and correct cracks in the upper longeron cutout-bridge, which could cause the upper longeron cutout-bridge to fail resulting in structural damage to the fuselage. This condition could lead to loss of control of the airplane. DATES: This AD becomes effective on February 28, 2005. On March 16, 1998 (63 FR 5881, February 5, 1998), the Director of the Federal Register approved the incorporation by reference of EXTRA Flugzeugbau GmbH Service Bulletin EA-300 & EA-300/S Doc: SB-300-3-93, Issue: A, Date: January 12, 1994. As of February 28, 2005, the Director of the Federal Register approved the incorporation by reference of EXTRA Flugzeugbau GmbH Service Bulletin EA-300 & EA-300/S Doc: SB-300-3-93, Issue: B, Date: June 10, 1998.
2023-12-21: The FAA is superseding Airworthiness Directive (AD) 2021-26- 13, which applied to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000- J2, Trent 1000-K2, and Trent 1000-L2 engines. AD 2021-26-13 required revision of the engine Time Limits Manual (TLM) life limits of certain critical rotating parts and direct accumulation counting (DAC) data files. Since the FAA issued AD 2021-26-13, RRD has revised the TLM with more restrictive airworthiness limitations, including updated life limits for certain critical parts and updated DAC data files. This AD was prompted by the manufacturer revising the engine TLM life limits of certain critical rotating parts, updating the DAC data files, and updating certain maintenance tasks. This AD requires revising the existing approved maintenance or inspection program, as applicable, to incorporate more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.
79-16-06: 79-16-06 DETROIT DIESEL ALLISON: Amendment 39-3527 is further amended by Amendment 39- 3650. Applies to all Model 250-C28 and 250-C30 series engines equipped with generator idler gearshaft P/N 6898980, or 6898591, or 77 tooth spur idler gearshaft P/N 6898652 installed in, but not limited to Bell 206L-1 and Sikorsky S-76 rotorcraft certificated in all categories. Compliance required as indicated unless previously accomplished. To preclude engine power loss as a result of an accessory drive gearbox failure, remove the referenced gearshafts from service prior to reaching 9000 cycles if installed in a 250-C28 series engine and prior to reaching 2000 cycles if installed in a 250-C30 engine. For those gearshafts that are within 50 cycles of the appropriate limit on the effective date of this AD, compliance is required within 100 cycles. For the purpose of this AD, a cycle is defined as an attempted or completed start, or a motoring of the engine using the starter. The start counter is activated and accumulates the count of cycles only when the ignition circuit is energized. Therefore, cycles due to motoring with the starter (ignition circuit not energized) must be added to the cycle count. (Detroit Diesel Allison Commercial Engine Bulletins CEB 72-2003 for the 250-C28B and CEB 72-3003 for the 250-C30 also pertain to this subject.) Amendment 39-3527 became effective August 15, 1979. This amendment 39-3650 becomes effective January 11, 1980.
97-03-11: This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB 2000 series airplanes, that requires modification and sealing of the firezone compartment of the nacelle of the left and right engines. This amendment is prompted by reports indicating that firezone compartments have not been completely sealed. The actions specified by this AD are intended to prevent flame, fuel, and vapor from entering compartments behind the firezone compartment. This condition, if not corrected, and if combined with a fire source in the firezone compartment, could result in an uncontrollable fire outside the firezone compartment.
2005-02-01: The FAA is adopting a new airworthiness directive (AD) for certain The Lancair Company (Lancair) Models LC40-550FG and LC42-550FG airplanes. This AD requires you to incorporate additional takeoff chart distance values information into the Performance Section of the FAA- approved Airplane Flight Manual (AFM). This AD results from flight testing that revealed that the takeoff distance values for the affected airplanes could not be duplicated. We are issuing this AD to prevent potential impact with terrain or obstruction during takeoff due to incorrect takeoff distance values.