AD 93-01-12

93-01-12 SHORT BROTHERS, PLC: Amendment 39-8466. Docket 92-NM-159-AD. Applicability: Model SD3-60 series airplanes; as listed in Short Brothers Service Bulletin SD360- 33-23, dated June 1, 1992; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent failure of the emergency lights to illuminate during an emergency, accomplish the following:

(a) Within 6 months after the effective date of this AD, modify the power supply to the emergency lighting system and perform a functional test of the system, in accordance with paragraph 2.A., Part A, B, C, or D, as applicable, of the Accomplishment Instructions of Short Brothers Service Bulletin SD360-33-23, dated June 1, 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. Operatorsshall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch.

(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 and functional test shall be done in accordance with Short Brothers Service Bulletin SD360-33-23, dated June 1, 1992. 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 Short Brothers, PLC, 2011 Crystal Drive, Suite 713, Arlington, Virginia 22202-3719. 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 March 2, 1993.