AD 98-13-27 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 equipped with circuit breaker panels 10VE up to and including serial number 131, and 11VE up to and including serial number 133; and Model 328-100 series airplanes, serial numbers 3005 through 3095 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 (d) 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 electrical short circuits of the contact points and power relays on the circuit breaker panels, which could result in increased risk of smoke and fire damage in the flight compartment, accomplish the following: (a) For Model 328-100 series airplanes equipped with circuit breaker panels 10VE up to and including serial number 131, and 11VE up to and including serial number 133: Within 14 days after the effective date of this AD, perform a one-time visual inspection to detect discrepancies of circuit breaker panels 10VE and 11VE at the back lighting contact points, in accordance with Dornier Alert Service Bulletin ASB-328-31-016, dated April 2, 1997. (1) If no discrepancy is detected, prior to further flight, modify the contact points by applying additional sealant in accordance with the alert service bulletin. (2) If any discrepancy is detected, prior to further flight, replace the damaged circuit breaker panel with a new or serviceable panel and modify the contact points by applying additional sealant, in accordance with the alert service bulletin. (b) For Model 328-100 series airplanes, serial numbers 3005 through 3095 inclusive: Within 90 days after the effective date of this AD, install a jiffy junction fitted with a high capacity fuse on circuit breaker panels 10VE and 11VE, in accordance with version 1 or version 2, as applicable, of the Accomplishment Instructions of Dornier Service Bulletin SB-328-31-226, dated June 16, 1997, including Price/Material Information Sheet. (c) For Model 328-100 series airplanes, serial numbers 3005 through 3089 inclusive: Within 90 days after the effective date of this AD, replace relays 32HB and 36HB, part [[Page 34574]] number (P/N) DON405M520U5NL, on relay panel 22VE with new relays, P/ N 2504MY1, in accordance with Dornier Service Bulletin SB-328-21- 218, dated July 2, 1997, including Price/Material Information Sheet. (d) 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. (e) 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. (f) The actions shall be done in accordance with Dornier Alert Service Bulletin ASB-328-31-016, dated April 2, 1997; Dornier Service Bulletin SB-328-31-226, dated June 16, 1997, including Price/Material Information Sheet; or Dornier Service Bulletin SB- 328-21-218, dated July 2, 1997, including Price/Material Information Sheet, as applicable. 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 FAIRCHILD DORNIER, 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 directives 97-136, dated May 22, 1997; 97-330, dated November 20, 1997; and 97-323, dated November 20, 1997. (g) This amendment becomes effective on July 30, 1998. Issued in Renton, Washington, on June 15, 1998. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-16449 Filed 6-24-98; 8:45 am] BILLING CODE 4910-13-U