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2000-06-02: This document adopts a new airworthiness directive (AD) that applies to all Dornier Luftfahrt GmbH (Dornier) 228 series airplanes that are equipped with pneumatic deicing boots. This AD requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This AD is the result of reports of in-flight incidents and an accident that occurred in icing conditions where the airframe pneumatic deicing boots were not activated. The actions specified by this AD are intended to assure that flightcrews activate the pneumatic wing and tail deicing boots at the first signs of ice accumulation. This action will prevent reduced controllability of the aircraft due to adverse aerodynamic effects of ice adhering to the airplane prior to the first deicing cycle.
2000-05-27: This amendment supersedes an existing airworthiness directive (AD), applicable to certain British Aerospace Model BAe 146-100A, -200A, and -300A series airplanes, that currently requires either a one-time nondestructive test (NDT) inspection or a detailed visual inspection for cracking of the fuselage skin in the vicinity of frame 29 between stringers 12 and 13, and repair, if necessary. This amendment requires that the current thresholds for these inspections be reduced and that repetitive inspections be performed. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to detect and correct fatigue cracking of the fuselage skin in the specified area, which could result in reduced structural integrity of the airplane.
2000-05-19: This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 727 series airplanes, that requires a one-time detailed visual inspection of the fuselage skin and bonded doubler area above the forward entry doorway to detect fatigue cracking or the existence of certain repairs, and follow-on corrective actions, if necessary. This action also requires a preventive modification or full-sized repair doubler, as applicable. This amendment is prompted by reports of fatigue cracking in the fuselage skin and bonded doublers in the forward and aft corners above the forward entry doorway. The actions specified by this AD are intended to prevent such fatigue cracking of the fuselage skin and bonded doubler, which could result in reduced structural integrity and consequent loss of cabin pressurization.
2000-06-03: This document adopts a new airworthiness directive (AD) that applies to all Bombardier Inc. (Bombardier) Models DHC-6-1, DHC-6-100, DHC-6-200, and DHC-6-300 airplanes that are equipped with pneumatic deicing boots. This AD requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This AD is the result of reports of in-flight incidents and an accident that occurred in icing conditions where the airframe pneumatic deicing boots were not activated. The actions specified by this AD are intended to assure that flightcrews activate the pneumatic wing and tail deicing boots at the first signs of ice accumulation. This action will prevent reduced controllability of the aircraft due to adverse aerodynamic effects of ice adhering to the airplane prior to the first deicing cycle.
2000-05-23: This amendment adopts a new airworthiness directive (AD) that applies to all Ayres Corporation (Ayres) S2R series airplanes that are equipped with at least one main landing gear fuselage attach bolt with a grease fitting installed through the shank. This AD requires replacing the main landing gear fuselage attach bolts that are drilled with a grease fitting with undrilled (no grease access) attach bolts. This AD is the result of a report of cracks found in all four main landing gear fuselage attach bolts on one of the affected airplanes. The actions specified by this AD are intended to prevent collapse of the main landing gear caused by cracked main landing gear fuselage attach bolts, which could result in main landing gear collapse with possible wing fuel tank rupture and consequent fire
87-16-02: 87-16-02 HARTZELL: Priority letter issued July 31, 1987. Applies to Model HC-B5MP- 3C/M10876K propellers installed on Short Brothers Model SD3-60 aircraft. This priority letter AD is effective immediately upon receipt. Compliance is required, as indicated, unless already accomplished. To prevent propeller blade separation near the hub which could result in engine separation from the aircraft, accomplish the following: (a) Until compliance with paragraph (b), remove propeller from aircraft, disassemble propeller, penetrant inspect and rework, as required, the blade pilot tube bore, in accordance with Hartzell Service Bulletin No. 136D, dated May 23, 1986, in accordance with the following schedule: TIME SINCE NEW (TSN) - HOURS INSPECT/REWORK Less than or equal to 3000 Prior to exceeding 3000 hours time in service or 250 additional flights from the effective date of this priority letter AD, whichever occurs later, and thereafter at intervals not to exceed 300 flights. Greater than 3000 and have accumulated excess of 300 flights since last inspection per Service Bulletin 136D Reinspect/rework prior to accumulation of an additional in 250 flights from the effective date of this priority letter AD, and thereafter at intervals not to exceed 300 flights. Greater than 3000 and have accumulated less than or equal to 300 flights since last inspection per Service Bulletin 136D. Reinspect/rework prior to accumulation of 300 flights since last inspection or 250 additional flights from the effective date of this priority letter AD, whichever occurs later, and thereafter at intervals not to exceed 300 flights. (b) Remove from service (retire) and replace blade Model M10876K with new design blade Model M10876ASK, or Federal Aviation Administration (FAA) approved equivalent, prior to March 31, 1988. Aircraft may be ferried in accordance with the provisions of Federal Aviation Regulations (FAR's) 21.197 and 21.199 to a base where the AD can be accomplished. Upon request, an equivalent means of compliance with the requirements of this priority letter AD may be approved by the Manager, Chicago Aircraft Certification Office, FAA, 2300 East Devon Avenue, Des Plaines, Illinois 60018. Upon submission of substantiating data by an owner or operator through an FAA Maintenance Inspector, the Manager, Chicago Aircraft Certification Office, may adjust the compliance time specified in this priority letter AD. Documents pertinent to this priority letter AD may be obtained from Hartzell Propeller Products Division, TRW Aircraft Components Group, 350 Washington Avenue, Piqua, Ohio 45356, or may be examined at the Office of the Regional Counsel, FAA, Rules Docket No. 87- ANE-27, 12 New England Executive Park, Burlington, Massachusetts 01803. Federal Register publication to follow. This priority letter AD issued July 31, 1987, is effective immediately upon receipt.
92-06-05 R1: 92-06-05 R1 BRITISH AEROSPACE: Amendment 39-8251. Revises amendment 39-8185, AD 92- 06-05. Docket No. 91-NM-209-AD. Applicability: Model DH/BH/HS/BAe 125 series airplanes, except Model BAe 125-1000A series airplanes, certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent reduced structural integrity of the fuselage and subsequent decompression of the airplane, accomplish the following: (a) Prior to the accumulation of 4,000 landings, or within 60 days after the effective date of this AD, whichever occurs later, accomplish the following in accordance with British Aerospace Service Bulletin 53-73, Revision 2, dated May 18, 1991: (1) Perform a visual inspection of the nose landing gear (NLG) bay left and right sidewalls to detect the presence of washers or spotface under nuts. (i) If no spotface is found, perform a visual inspection to detect damage to the web caused by nuts or washers. (ii) Blend out any damage found, excluding cracking, prior to further flight. (2) Perform either a dye penetrant or eddy current inspection to detect cracks on the NLG bay left and right sidewalls. If cracks are found, repair prior to further flight, in a manner approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. (b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. (c) 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. (d) The inspections shall be done in accordance with British Aerospace Service Bulletin 53- 73, Revision 2, dated May 18, 1991. This incorporation by reference was previously approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51 as of April 21, 1992 (57 FR 9170, March 17, 1992). Copies may be obtained from British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, DC. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC. (e) This amendment is effective April 21, 1992.
2014-23-07: We are superseding Airworthiness Directive (AD) 2004-16-01 for certain Airbus Model A330-200 and -300 series airplanes and Model A340- 200 and -300 series airplanes. AD 2004-16-01 required repetitive inspections for cracking of the chromed area of the left and right piston rods for the main landing gear (MLG) retraction actuators, and related investigative and corrective actions if necessary. This new AD requires repetitive draining of any fluid from the retraction actuator piston rod internal volume and sealing of the vent hole; repetitive ultrasonic inspections of the upper end of the piston rods, and corrective actions if necessary; a one-time ultrasonic inspection (longitudinal and circumferential) of the full length of the piston rod, and corrective actions if necessary; and a terminating modification of the left-hand and right-hand MLG retraction actuators. This AD was prompted by reports of the piston rods for the MLG retraction actuators rupturing during flight. We areissuing this AD to prevent cracking of the piston rods for the MLG retraction actuators, which could result in rupture of a piston rod, non-damped extension of the MLG, high loads on the fully extended MLG, and consequent reduced structural integrity of the MLG.
92-09-01: 92-09-01 AEROSPATIALE: Amendment 39-8226. Docket No. 92-NM-66-AD. Applicability: Model ATR42-200 and -300 series airplanes, as listed in Aerospatiale Service Bulletin ATR42-76-0009, Revision 1, dated December 5, 1991; and Model ATR72-100 and -200 series airplanes, as listed in Aerospatiale Service Bulletin ATR72-76-1002, Revision 1, dated December 5, 1991; certificated in any category. Compliance: Required within 60 days after the effective date of this AD, unless accomplished previously. To prevent the crew's inability to increase or decrease engine power, accomplish the following: (a) Install a heat deflector on the rear upper cowl, and a thermal bridge between the teleflex controls and the air conditioning duct, in accordance with Aerospatiale Service Bulletin ATR42-76-0009, Revision 1, dated December 5, 1991; or Aerospatiale Service Bulletin ATR72- 76-1002, Revision 1, dated December 5, 1991; as applicable. (b) An alternative method of compliance oradjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. (c) 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. (d) The installations shall be done in accordance with Aerospatiale Service Bulletin ATR42-76-0009, Revision 1, dated December 5, 1991; or Aerospatiale Service Bulletin ATR72- 76-1002, Revision 1, dated December 5, 1991; as applicable. These service bulletins include the following list of effective pages: Service Bulletin Page Revision Number Date 1-6, 8-12, 15-17 1 December 5, 1991 ATR42-76-0009, Revision 1 7, 13-14, 18 Original April 11, 1991 1-2, 6-10, 13-14 1 December 5, 1991 ATR72-76-1002 Revision 1 3-5, 11-12, 15-16 Original April 11, 1991 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 Aerospatiale, 316 Route de Bayonne, 31060 Toulouse, Cedex 03, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC. (e) This amendment becomes effective on May 8, 1992.
2014-23-05: We are adopting a new airworthiness directive (AD) for all Airbus Model A318 series airplanes, Model A319 series airplanes, Model A320-211, -212, -214, -231, -232, and -233 airplanes, and Model A321 series airplanes. This AD was prompted by a report of a circumferential crack at the gland retaining-ring groove of certain retraction actuators on the main landing gear (MLG). This AD requires an inspection to identify the part numbers of MLG retraction actuators and replacement of certain MLG retraction actuators. We are issuing this AD to prevent MLG retraction actuator failure that could prevent the full extension and/or down-locking of the MLG, possibly resulting in MLG collapse during landing or rollout, and consequent damage to the airplane and injury to the occupants.