Results
93-08-18: 93-08-18 PRATT & WHITNEY: Amendment 39-8566. Docket 92-ANE-16. Supersedes AD 91-05-20, Amendment 39-6919. Applicability: Pratt & Whitney Model PW4152, PW4156, and PW4158 model turbofan engines equipped with electronic engine control (EEC) Part Numbers 50D436, 50D791, 50D824, 51D037, and 51D053, installed on but not limited to Airbus A310 and Airbus A300 series aircraft. Compliance: Required within 30 days after the effective date of this airworthiness directive (AD), unless accomplished previously. To prevent a high pressure compressor failure that can be caused by excessive blade tip to airseal interference, which can result in total loss of engine thrust, accomplish the following: (a) The ENGINE ANTI ICE must be switched to "ON" prior to takeoff and must be in the "ON" position for any flight operation below 15,000 feet. (b) Install placards in the cockpit of Airbus A310-300 and A300-600 aircraft, just above the Captain and the First Officer Primary Flight Displays, indicating the following: "BEFORE TAKE OFF, SET ENG. ANTI ICE ON. KEEP ENG. ANTI ICE ON FOR ANY OPERATION BELOW 15,000 FT." NOTE: Further information on the placards may be obtained from Airbus Industrie Service Information Letter 72-001, Revision 1, dated September 18, 1990. (c) 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, Engine Certification Office. The request should be forwarded through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Engine Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Engine Certification Office. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (e) This amendment becomes effective on July 6, 1993.
2015-06-09: We are adopting a new airworthiness directive (AD) for Pacific Aerospace Limited (PAL) Model 750XL 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 PAL Model 750XL airplanes manufactured with only one attitude indicator. A second attitude indicator is required for flights under instrument flight rules. We are issuing this AD to require actions to address the unsafe condition on these products.
2000-08-18: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9 series airplanes, and Model MD-88 and MD-90-30 airplanes, that requires replacement of the lanyard assembly pins of the evacuation slides with solid corrosion-resistant pins. This amendment is prompted by a report that, due to stress corrosion on the lanyard pins, the arms of the lanyard assembly of the evacuation slide were found to be frozen. The actions specified by this AD are intended to prevent the improper deployment of the evacuation slide due to stress corrosion, which could delay or impede evacuation of passengers during an emergency.
2000-09-05: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Allison Engine Company AE 3007 series turbofan engines. This AD would require removal of certain cone shafts from service before exceeding new cyclic life limits and replacement with serviceable parts. This amendment is prompted by additional testing and low cycle fatigue (LCF) life analysis that substantiate lower cyclic lives than originally determined. The actions specified by this AD are intended to prevent LCF failure of cone shafts, which could result in an uncontained engine failure and damage to the aircraft.
81-24-04: 81-24-04 SWEARINGEN: Amendment 39-4261. Applies to the following airplane models approved for flight into known icing: Model SA226-T (Serial Numbers T-205E; T-215E, T-201 through T-275 and T-277 through T-291); Model SA226-T(B) (Serial Numbers T-276; T-303E; and T-292 through T-419); Model SA226-AT (Serial Numbers AT-003E, AT-038E, AT-062E, AT-064E, and AT-001 through AT-419); and Model SA-226-TC (Serial Numbers TC-211E, TC-211EE, TC-211EEE, TC-211EEEE, TC-202E, TC-208E, TC-215E, TC-222E, TC-222EE, TC-227E, TC-228E, TC-229E, TC-234E, TC-237E, TC-238E, TC-239E, TC-255E, TC-246E, and TC-201 through TC-419) airplanes. (Airworthiness Directive Docket No. 81-ASW-37.) Compliance is required within the next 10 hours' time in service after the effective date of this AD unless already accomplished. To prevent operation in icing conditions wherein ice shed from the propeller spinner could be ingested into the engine inlet, resulting in flameout and subsequent total loss of engine power, accomplish the following: (a) Strike from the Type of Operations paragraph in the Operation Limitations Section of the FAA approved Airplane Flight Manual the words, "and icing conditions." (b) Install a placard, minimum 1/4 inch lettering, on the instrument panel in plain view of the pilot stating, "Flight into known icing conditions prohibited." NOTE: Installation of an auto ignition system in accordance with Fairchild Swearingen Corporation Service Bulletin SB 74-002 dated October 22, 1981, removes the limitations in (a) and (b) above. (c) Any alternate equivalent method of compliance with this airworthiness directive must be approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. 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 personsaffected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Director of Product Support, Fairchild Swearingen Corporation, P.O. Box 32486, San Antonio, Texas 78284. These documents may also be examined at the Office of the Regional Counsel, Southwest Region, Federal Aviation Administration, 4400 Blue Mound Road, Fort Worth, Texas, and at the FAA Headquarters, 800 Independence Avenue, SW., Washington, D.C. A historical file on this AD, which includes the incorporated material in full, is maintained by the FAA at their headquarters in Washington, D.C., and at the Southwest Regional Office in Fort Worth, Texas. This amendment becomes effective November 19, 1981.
2015-06-04: We are superseding Airworthiness Directive (AD) 2011-13-07 for all Dassault Aviation Model FALCON 7X airplanes. AD 2011-13-07 requires revising the airplane flight manual (AFM) to include a procedure to power off a radio-altimeter or revert to the correct radio-altimeter output. This new AD requires revising the AFM to include a simpler procedure to revert to the correct radio-altimeter output. This AD was prompted by an analysis which showed that AFM procedures could be simplified. We are issuing this AD to ensure that the flightcrew has procedures in the event of a radio-altimeter lock-up, which inhibits the display of warnings along with certain abnormal conditions, during the switch into landing mode during altitude cruise. If not corrected, this could result in the flightcrew being unaware of possible system failures that require immediate action by the flightcrew, leading to possible loss of control of the airplane.
2000-07-51: This document publishes in the Federal Register an amendment adopting airworthiness directive (AD) 2000-07-51 that was sent previously to all known U.S. owners and operators of McDonnell Douglas Model 717-200 series airplanes by individual notices. This AD requires coiling and stowing of electrical wires between the glareshield control panel and the Integrated Standby Instrument System; and revising the abnormal procedures of the Procedures section of the Airplane Flight Manual to include procedures for identifying and pulling certain circuit breakers if the altimeter Captain's Primary Flight Display (PFD) data become unreliable. This action is prompted by a report of two incidents in which an intermittent loss of altitude data occurred simultaneously on the Captain's PFD, First Officer's PFD, and the Integrated Standby Instrument System (ISIS) altitude display due to a voltage drop in the power distribution control unit. The actions specified by this AD are intended to prevent loss of all altitude information and subsequent essential navigation data for continued safe flight and landing.
2000-09-03: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747-400 series airplanes, that currently requires various inspections and functional tests to detect discrepancies of the thrust reverser control and indication system, and correction of any discrepancy found. This amendment adds an appendix and revises certain actions in the existing AD. This amendment is prompted by a report indicating that completion of the cone brake test of the center drive unit is ineffective for certain airplanes. The actions specified in this AD are intended to ensure the integrity of the fail safe features of the thrust reverser system by preventing possible failure modes in the thrust reverser control system that can result in inadvertent deployment of a thrust reverser during flight.
2022-16-02: The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by the discovery that overwing emergency exit door (OWEED) handle covers were difficult to open on some airplanes. This AD requires replacing the existing OWEED handle cover brackets with newly designed OWEED handle cover brackets and installing placards regarding this replacement, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
97-11-04: This amendment adopts a new airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. (BHTI) Model 412 and 412EP helicopters, that requires creation of a component history card or equivalent record using a Retirement Index Number (RIN) system; establishes a system for tracking increases to the accumulated RIN; and establishes a maximum accumulated RIN for certain main rotor masts (masts) and main rotor spline plates (spline plates). This amendment is prompted by fatigue analyses and tests that show certain masts and spline plates fail earlier than originally anticipated because of an unanticipated high number of takeoffs and external load lifts utilizing high power settings, in addition to the time-in-service (TIS) accrued under normal operating conditions. The actions specified by this AD are intended to prevent fatigue failure of the mast or spline plate, which could result in failure of the main rotor system and subsequent loss of control of the helicopter.