AD 98-06-16 Airworthiness Directives; Dornier Model 328-100 Series Airplanes

Models named: 328-100 series. Read the applicability below — it usually turns on serial or part numbers too.

Model 328-100 series airplanes having serial numbers 3005 through 3024 inclusive, certificated in any category. Note 1: This AD applies to each airplane 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 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 failure, during takeoff and landing, of the No. 2 primary flight and multiple function displays, or the autopilot/yaw damper servos, which consequently could result in the inability of the flight crew to respond to and control the systems associated with these avionics during these critical phases of flight, accomplish the following: (a) Within 6 months after the effective date of this AD, modify the wiring that supplies power from the non-essential bus 2 to the bus 2 avionics circuit, and from the non-essential bus 1 to the bus 1 avionics circuit, in accordance with Dornier Service Bulletin SB- 328-24-062, Revision 1, dated June 27, 1995. (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, International Branch, ANM-116, 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, International Branch, ANM-116. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. (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 Dornier Service Bulletin SB-328-24-062, Revision 1, dated June 27, 1995. 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 Dornier Luftfahrt GmbH, P.O. Box 1103, D-82230 Wessling, Germany. 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. Note 3: The subject of this AD is addressed in German airworthiness directive 95-284, dated August 4, 1995. (e) This amendment becomes effective on April 20, 1998. Issued in Renton, Washington, on March 9, 1998. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-6504 Filed 3-13-98; 8:45 am] BILLING CODE 4910-13-U