AD 98-15-16 Airworthiness Directives; Bombardier-Rotax GmbH 912 F Series Reciprocating Engines

Makes named: diamond, rotax. Read the applicability below — it usually turns on serial or part numbers too.

Bombardier-Rotax GmbH 912 F series reciprocating engines, with serial numbers (S/Ns) 4,412.502 up to and including S/ N 4,412.764, installed on but not limited to Diamond Aircraft Industries DA 20-A1 aircraft. Note 1: This airworthiness directive (AD) applies to each engine 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 engines 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 fuel leaks from the fuel pump, which could result in undetected loss of fuel in flight or an engine fire, accomplish the following: (a) At the earliest of: prior to exceeding 25 hours time in service (TIS) after the effective date of this AD, the next engine maintenance action, or upon discovery of a fuel pump leak, install an improved fuel pump and fuel supply tube in accordance with Bombardier-Rotax GmbH Technical Bulletin (TB) No. 912-20 R1, dated February 10, 1998. (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, Engine Certification Office. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Engine Certification Office. Note 2: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Engine Certification Office. (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 aircraft to a location where the requirements of this AD can be accomplished. Note 3: Special flight permits may only be issued to operators who exceed the 25 hour TIS requirement. (d) The actions required by this AD shall be performed in accordance with the following Bombardier-Rotax GmbH TB: ------------------------------------------------------------------------ Document No. Pages Date ------------------------------------------------------------------------ 912-20 R1........................ 1-5 February 10, 1998. ------------------------------------------------------------------------ Total pages: 5. 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 Bombardier-Rotax GmbH, Welser Strasse 32, A-4623 Gunskirchen, Austria; telephone 7246-601-232, fax 7246-601-370. Copies may be inspected at the FAA, New England Region, Office of the Regional Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on August 7, 1998. Issued in Burlington, Massachusetts, on July 15, 1998. Jay J. Pardee, Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 98-19484 Filed 7-22-98; 8:45 am] BILLING CODE 4910-13-P