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99-17-05 ISRAEL AIRCRAFT INDUSTRIES, LTD.: Amendment 39-11254. Docket 99-NM-204-AD.
Applicability: Model Astra SPX series airplanes, serial numbers 089 through 115 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.
Compliance: Required as indicated, unless accomplished previously.
To detect and correct cracking of the main fuel tube assemblies of the left and right engines, which could result in fuel line fractures and consequent in-flight engine shutdowns or an increased risk of engine nacelle fires, accomplish the following:
Repetitive Inspections and Corrective Action
(a) Within 5 hours time-in-service after the effective date of this AD: Perform a fluorescent penetrant inspection to detect cracking of the main fuel tube assemblies of the left and right engines around the bases of the "T" joint welds of the pressure transmitter tubes, in accordance with Astra Alert Service Bulletin 1125-73A-191, dated April 2, 1999. Repeat the inspection thereafter at intervals not to exceed 25 hours time-in-service. If any crack is detected during any inspection required by this paragraph, prior to further flight, replace the fuel tube assembly with a new or serviceable part, in accordance with the alert service bulletin.
Alternative Methods of Compliance
(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.
Special Flight Permits
(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.
Incorporation by Reference
(d) The actions shall be done in accordance with Astra Alert Service Bulletin1125-73A-191, dated April 2, 1999. 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 Galaxy Aerospace Corporation, One Galaxy Way, Fort Worth Alliance Airport, Fort Worth, Texas 76177. 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 Israeli airworthiness directive 73-99-07-05, dated July 11, 1999.
(e) This amendment becomes effective on September 1, 1999.
