AD 95-22-01 Airworthiness Directives; Aerospace Lighting Corporation Power Units and Power Supplies

Makes named: raytheon. Read the applicability below — it usually turns on serial or part numbers too.

Aerospace Lighting Corporation (ALC) lamp connectors, Part Number (P/N) 31.85.1.A; Series 66 fluorescent lamps; power units, P/N's TR-991, TR-992, AL-0546, and AL-0514; and power supplies, P/N's 1895D and AL-0598. These products are utilized in cabin fluorescent lighting systems, and are installed on, but not limited to, the following aircraft: Airbus Industrie Model A310; Avion Marcel Dassault Breguet Aviation Model Falcon 10; Boeing Airplane Company Models 727, 737, 747, and 757; Raytheon Corporate Jets, Inc. (formerly British Aerospace) Model HS. 125-600A, -700A, - 800A, and -1000A; Bombardier Inc. Canadair Ltd. Models CL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600-2B19, CL-601, CL-601-3A, CL-601-3R; Cessna Aircraft Company Models 550 and 560; Dassault Aviation Models Mystere-Falcon 20 and 50; Empresa Brasileira de Aeronauctica S/A Model Embraer EMB-120; Gulfstream Aerospace Corporation Models G- 159, G-1159, G-1159A, and G-IV; Israel Aircraft Industrie, Ltd. Models 1124 and 1125; Jetstream Aircraft, Ltd. Jetstream Model 310; Learjet Corporation Models Learjet 35 and 36; Saab Aircraft AB Model Saab 340A; and Sikorsky Aircraft Division Model S-76A. Note: This airworthiness directive (AD) applies to each product identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For products that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (e) to request approval from the Federal Aviation Administration (FAA). This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any product from the applicability of this AD.

Required as indicated, unless accomplished previously. To prevent smoke, fire, electrical shock, and possible electromagnetic interference caused by high voltage arcing in the cabin which, if undetected, could result in personal hazard or loss of the aircraft, accomplish the following: (a) Within 30 calendar days of the effective date of this airworthiness directive (AD), accomplish the following: (1) Inspect the cabin fluorescent lighting system in accordance with ALC Information Bulletin No. IB 90-001, dated August 15, 1992, paragraph IV. ``Fluorescent Lighting System Components Identification and Inspection Procedure,'' subparagraphs B.1, 2., 3., 5., 6., and 7. (2) After completing the inspection above in paragraph (a)(1) of this AD, remove and replace any part(s) found to be damaged or improperly configured in accordance with paragraph IV. B.4, 8., and 9., as required, of ALC Information Bulletin No. IB 90-001, dated August 15, 1992. (b) Within 5 flights or 10 flight hours, whichever occurs first, of a cabin fluorescent lighting system components failure, repeat the removal and replacement procedures of paragraph (a)(2) of this AD. (c) An alternative method of compliance with paragraphs (a)(1), (a)(2), and (b) of this AD would be to turn the fluorescent lighting system off and to placard the system to prevent unintentional activation. (d) Replacement of the following ALC parts, in accordance with the following instructions, constitutes terminating action to the inspections required by paragraph (b) of this AD. These actions are: (1) Remove power units, P/N TR-991 or AL-0546, and replace with protected power units, P/N AL-5117, in accordance with ALC Installation Instruction (II) No. AL-11025M, dated March 15, 1992. (2) Remove power units, P/N TR-992 or AL-0514, and replace with protected power unit, P/N AL-5112, in accordance with ALC II No. AL- 11024M, dated March 15, 1992. (3) Remove power supplies, P/N 18-95D or AL-0598 and dimmer, P/N 22-311 or AL-0542, and replace with protected power supply, P/N AL- 5118 or AL-5130, in accordance with ALC II No. AL-11023M, Revision A, dated May 20, 1994. (e) 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, New York Aircraft 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, New York Aircraft Certification Office. Note: Information concerning the existence of approved alternative method of compliance with this AD, if any, may be obtained from the New York Aircraft Certification Office. (f) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the aircraft to a location where the requirements of this AD can be accomplished. (g) The actions required by this AD shall be done in accordance with the following service documents: ------------------------------------------------------------------------ Document No. Pages Revision Date ------------------------------------------------------------------------ ALC II AL-11023M............ 1-18.... A......... May 20, 1994. Total pages: 18 ALC II AL-11024M............ 1-9..... Original.. March 15, 1992. Total pages: 9 ALC II AL-11025M............ 1-9..... Original.. March 15, 1992. Total pages: 9 ALC No. IB90-001............ 1....... Revision.. August 15, 1992. 2-8..... Original.. March 30, 1990. 9....... Revision.. August 15, 1992. 10-13... Original.. March 30, 1990. Total pages: 13 ------------------------------------------------------------------------ [[Page 55784]] 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 Aerospace Lighting Corporation, 101-8 Colin Drive, Holbrook, NY 11741; telephone (516) 563-6400, fax (516) 563-8781. Copies may be inspected at the FAA, New England Region, Office of the Assistant Chief Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (h) This amendment becomes effective on December 4, 1995. Issued in Burlington, Massachusetts, on October 11, 1995. Jay J. Pardee, Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 95-26723 Filed 11-2-95; 8:45 am] BILLING CODE 4910-13-U