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2021-25-11: The FAA is superseding Airworthiness Directive (AD) 78-02-03, which applied to all Piper Aircraft, Inc. (Piper) Model PA-23-250 airplanes. AD 78-02-03 required repetitively inspecting the stabilator tip tube and weight assemblies for cracks, inspecting for missing rivets and screws, replacing the forward rib/horn assemblies, and reinforcing the mounting. Since AD 78-02-03 was issued, Piper developed a newly-designed stabilator, which is not subject to the unsafe condition, and revised its service information. This AD retains the actions of AD 78-02-03, but reduces the applicability and requires the actions in the revised service information. The FAA is issuing this AD to address the unsafe condition on these products.
90-26-06: 90-26-06 SAAB-SCANIA: Amendment 39-6833. Docket No. 90-NM-161-AD. Applicability: Model SF-340A series airplanes, Serial Numbers 004 through 138, inclusive, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent reduced structural integrity of the horizontal stabilizer, accomplish the following: A. Prior to the accumulation of 16,000 landings or within 90 days after July 13, 1990 (the effective date of AD 90-12-12, Amendment 39-6628), whichever occurs later, accomplish the following: 1. Perform an eddy current inspection to detect cracks in the horizontal stabilizer, in accordance with SAAB-Scania Service Bulletin 340-55- 013, dated December 1, 1989. If cracks are detected, repair prior to further flight, in accordance with the service bulletin. 2. Reinforce the horizontal stabilizer, in accordance with SAAB-Scania Service Bulletin 340-55-013, dated December 1, 1989. B. Prior to the accumulation of 16,000 landings, or within 90 days after the effective date of this AD, whichever occurs later, accomplish the following in accordance with the Accomplishment Instructions in SAAB-Scania Service Bulletin 340-55-027, dated June 28, 1990, or Revision 1, October 10, 1990. 1. Remove the left and right drag angles and associated shims. 2. Perform a visual and dye penetrant inspections of the drag angle attaching holes; if cracks are found, repair prior to further flight. 3. Install new drag angles and associated shims. C. An alternate means 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. NOTE: The request should be submitted directly to the Manager, Standardization Branch, ANM- 113, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrenceto the Manager, Standardization Branch, ANM-113. D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to SAAB-Scania AB, Produce Support, S-581.88, Linkoping, Sweden. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington. Airworthiness Directive 90-26-06 supersedes AD 90-12-12, Amendment 39- 6628. This amendment (39-6833, AD 90-26-06) becomes effective on January 16, 1991.
78-01-14: 78-01-14 CESSNA: Amendment 39-3123. Applies to Model 182 Series (S/N's 18260797 thru 18265965) plus all other Cessna Model 182 Series incorporating ELT installations accomplished in accordance with Cessna Service Letter SE73-41 dated December 12, 1973, and Kits AK-150-97 or AK-150-104 or Kits AK-150-110 and AK-172-190 which were supplied by Cessna when Kits AK-150-97 and 150-104 were discontinued. Compliance: Required as indicated unless already accomplished. To preclude the possibility of an in-flight fire due to a loose ELT antenna coaxial cable connector making contact with the terminals of the battery relay and thereby shorting the electrical power to ground, within the next 100 hours time-in-service after the effective date of this AD or by March 15, 1978, whichever occurs first, accomplish the following: A) Install P/N 0712765-1 plastic guard over the P/N S1579 battery relay, or on those Cessna Model 182 airplanes not utilizing a P/N S1579 battery relay install two P/N MS25171-1S and two P/N MS25171-4S rubber nipple covers on the battery relay terminal in those airplanes, in accordance with Cessna Service Letter SE-77-41, dated November 7, 1977, or later approved revisions. B) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering & Manufacturing Branch, FAA, Central Region. This amendment becomes effective January 23, 1978.
77-22-03: 77-22-03 LOCKHEED: Amendment 39-3063. Applies to all Model 1329-23A and Model 1329-23D airplanes, serial numbers 5001 through 5092, 5094 through 5096 and 5121; all Model 1329-23E airplanes, serial numbers 5093, 5097 through 5120 and 5122 through 5162; and all Model 1329-25 airplanes, serial numbers 5201 through 5221. Compliance is required as indicated, unless already accomplished. To prevent failure of the reinforcing doubler and ring segment for the lower VHF antenna, accomplish the following: On Model 1329-23A, Model 1329-23D and Model 1329-23E airplanes, within the next 25 hours flying time, inspect for cracks in the reinforcing doubler and ring segment for the lower VHF antenna in accordance with Service Bulletin 329-281 or later FAA approved revision. If cracks are found, before further flight, replace the reinforcing doubler and ring segment in accordance with Service Bulletin 329-281 or later FAA approved revision, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. On Model 1329-23A, Model 1329-23D and Model 1329-23E airplanes on which cracks are not found, within the next 300 hours flying time, replace the reinforcing doubler and ring segment in accordance with Service Bulletin 329-281 or later FAA approved revision, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. On Model 1329-25 airplanes, serial numbers 5201 through 5221, within the next 300 hours flying time, replace the reinforcing doubler and ring segment in accordance with Service Bulletin 329II-53-6 or later FAA approved revision, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. This amendment becomes effective October 28, 1977.
2010-16-02: 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 corrosion on the Auxiliary Power Unit (APU) mounting rods that could cause the APU rod to break, affecting the APU support structure integrity. APU support structure failure could result in loss of power of the APU and possible loss of control of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.
2010-04-15: We are adopting a new airworthiness directive (AD) for the products listed above. 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: The aileron hinges and the stabilizer are fastened with steel tube rivets and brass tube rivets. During a complete overhaul, broken brass tube rivets have been detected. It has been determined that, due to production quality issue, the upset heads of the brass tube rivets could break under normal load conditions. This condition, if not corrected, could possibly lead to loss of control of the powered sailplane. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
76-15-02: 76-15-02 ALEXANDER SCHLEICHER: Amendment 39-2674. Applies to Rhonlerche II gliders, all serial numbers, certificated in all categories. Compliance is required as indicated, unless already accomplished. To detect cracks in the welded area between the flight control horizontal torsion tube and the front control stick mount and to prevent front control stick separation from the mount, accomplish the following: (a) Within the next 10 hours time in service after the effective date of this AD visually inspect with a 5 power magnifier the welded area between the flight control horizontal torsion tube and the front control stick mount in accordance with Alexander Schleicher Technical Note No. 13, page 1, dated June 23, 1975, and page 2, dated July 1, 1975, or an FAA-approved equivalent. (b) If a crack is found in performing the inspection required by paragraph (a) of this AD, prior to further flight, repair cracks and reinforce the torsion tube-mount area in accordance with Alexander Schleicher Technical Note No. 13, page 1, dated June 23, 1975, and page 2, dated July 1, 1975, or an FAA-approved equivalent. (c) If no crack is found in performing the inspection required by paragraph (a) of this AD, within the next 100 hours time in service after the effective date of this AD, reinforce the torsion tube-mount area in accordance with Alexander Schleicher Technical Note No. 13, page 1, dated June 23, 1975, and page 2, dated July 1, 1975, or an FAA-approved equivalent. This amendment becomes effective August 2, 1976.
94-15-09: This amendment adopts a new airworthiness directive (AD) that is applicable to all Aerospatiale Model ATR72 series airplanes. This action requires inspections to detect damage, corrosion, or cracking of the hinge pin on each shock absorber on the main landing gear (MLG), and repair or replacement of the pins, if necessary. This amendment is prompted by reports of rupture of certain hinge pins due to stress corrosion of the pins in the shock absorber on the MLG on Model ATR72 series airplanes. The actions specified in this AD are intended to prevent loss of the MLG during a hard landing due to malfunction of the shock absorber on the MLG.
93-21-05: 93-21-05 AEROSPATIALE: Amendment 39-8719. Docket 93-NM-54-AD. Applicability: Model ATR42-200 and -300 series airplanes, serial numbers 3 through 179 inclusive; certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent a severe out-of-trim condition, which could lead to reduced controllability of the airplane, accomplish the following: (a) Within 6 months after the effective date of this AD, modify the autopilot disengagement wiring located at shelf 82VU, in accordance with Aerospatiale Service Bulletin ATR42-22-0012, dated April 2, 1990; or Revision 1, dated October 12, 1992. (b) 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, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the 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 modification shall be done in accordance with Aerospatiale Service Bulletin ATR42-22-0012, dated April 2, 1990; or Aerospatiale Service Bulletin ATR42-22-0012, Revision 1, dated October 12, 1992. Revision 1 of Aerospatiale Service Bulletin ATR42-22-0012 contains the following list of effective pages: Page Number Revision Level Shown on Page Date Shown on Page 1-4, 7-8 1 October 12, 1992 5-6 Original April 2, 1990 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, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on December 13, 1993.
2009-15-16 R1: The FAA is revising an existing airworthiness directive (AD), which applies to all McDonnell Douglas Model DC-9-10 series airplanes, DC-9-30 series airplanes, DC-9-81 (MD-81) airplanes, DC-9-82 (MD-82) airplanes, DC-9-83 (MD-83) airplanes, DC-9-87 (MD-87) airplanes, MD-88 airplanes, and MD-90-30 airplanes. That AD currently requires modifying the flight deck door. This AD revises the applicability by removing certain airplanes. This AD was prompted by a report indicating that certain equipment of the flight deck door is defective. We are issuing this AD to prevent failure of this equipment, which could jeopardize flight safety. \n\nDATES: This AD is effective August 5, 2010, to all persons except those persons to whom it was made immediately effective by AD 2009-15-16, issued July 15, 2009, which contained the requirements of this amendment. \n\tThe Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of August 5,2010. \n\tOn July 6, 2010 (75 FR 38017, July 1, 2010), the Director of the Federal Register approved the incorporation by reference of a certain other publication listed in the AD. \n\tWe must receive any comments on this AD by September 20, 2010.