AD 93-23-08

93-23-08 CORPORATE JETS LIMITED (FORMERLY BRITISH AEROSPACE): Amendment 39-8742. Docket 92-NM-245-AD.

Applicability: Model DH/BH/HS/BAe 125 series airplanes, excluding Model BAe 125-1000A series airplanes; equipped with Garrett Model TFE 731-3 series engines; as listed in Corporate Jets Limited Service Bulletin SB.24-293-3501A,B,C,D,E,F, & G, Revision 2, dated March 31, 1993; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent overheating of the battery contactors and emergency contactors and a potential fire in the rear equipment bay, accomplish the following:

(a) For Model BAe 125-800A series airplanes: Within 6 months after the effective date of this AD, modify the mounting arrangements of the battery contactors and emergency contactors in the rear equipment bay, Modification Number 253501, Parts A, B, F, & G, as appropriate; and prior to further flight, perform a functional test; in accordance withCorporate Jets Limited Service Bulletin SB.24-293-3501A,B,C,D,E,F, & G, Revision 2, dated March 31, 1993.

(b) For all other airplanes: Within 6 months after the effective date of this AD, modify the mounting arrangements of the battery contactors and emergency contactors in the rear equipment bay, Modification Number 253501, Parts C, D, & E, as appropriate; and prior to further flight, perform a functional test; in accordance with Corporate Jets Limited Service Bulletin SB.24-293-3501A,B,C,D, & E, Revision 1, dated February 4, 1993; or SB.24-293-3501A,B,C,D,E,F, & G, Revision 2, dated March 31, 1993.

(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, 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.

(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) The modifications and tests shall be done in accordance with Corporate Jets Limited Service Bulletin SB.24-293-3501A,B,C,D, & E, Revision 1, dated February 4, 1993; or Corporate Jets Limited Service Bulletin SB.24-293-3501A,B,C,D,E,F, & G, Revision 2, dated March 31, 1993; as applicable. (NOTE: The issue date of Service Bulletins SB.24-293-3501A,B,C,D, & E and SB.24-293-3501A,B,C,D,E,F, & G is indicated only on page 1 of each document; no other page of these documents is dated.) 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 Corporate Jets, Inc., 22070 Broderick Drive, Sterling, Virginia 20166. 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.

(f) This amendment becomes effective on December 29, 1993.