AD 96-12-13 Airworthiness Directives; Dornier Model 328 Series Airplanes Equipped with Honeywell GP-300 Guidance and Display Controller

Models named: 328 series. Read the applicability below — it usually turns on serial or part numbers too.

Model 328 series airplanes, equipped with Honeywell GP-300 guidance and display controller having part number (P/N) 7015327-901 or -902; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated, unless accomplished previously. To prevent a defective light bulb from causing a short circuit that emits smoke and fumes into the cockpit, or causing damage to the circuit cards and various components, which may lock the autopilot into the engaged mode, accomplish the following: (a) Within 60 days after the effective date of this AD, modify the Honeywell GP-300 guidance and display controller, having P/N 7015327-901 or -902, in accordance with Honeywell Service Bulletin 7015327-22-2, dated March 4, 1996. (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, Los Angeles Aircraft Certification Office (ACO), 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, Los Angeles ACO. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. (c) 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 airplane to a location where the requirements of this AD can be accomplished. (d) The modification shall be done in accordance with Honeywell Service Bulletin 7015327-22-2, dated March 4, 1996. 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 Honeywell, Inc., Attn: Customer Support Materiel, P.O. Box 21111, Phoenix, Arizona 85036. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles Aircraft Certification Office, Transport Airplane Directorate, 3960 Paramount Boulevard, Lakewood, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on June 26, 1996. Issued in Renton, Washington, on May 31, 1996. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 96-14224 Filed 6-10-96; 8:45 am] BILLING CODE 4910-13-U