AD 99-07-19 Airworthiness Directives; AlliedSignal Inc. TFE731-40R-200G Turbofan Engines

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

AlliedSignal Inc. TFE731-40R-200G turbofan engines installed on, but not limited to, Israel Aircraft Industries LTD (IAI), Model Astra SPX airplanes. 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 (e) 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 done previously. To prevent fuel from spraying on and around electrical components due to a cracked fuel line, which can result in an in- flight engine shutdown, and could possibly result in an engine fire do the following: (a) Inspect the fuel flow tube assembly, P/N 3061157-2, within 5 hours time-in-service (TIS) after the effective date of this AD, in accordance with Operator Information Wire (OIW) TFE731-40G-99-01, dated January 7, 1999, Compliance/ Accomplishment Instructions step (2)(a) through step (2)(f) if any of the following actions have been done: (1) If the fuel control or fuel flow meter have been removed or replaced; (2) If maintenance has been performed which required removal of the clamping which supports the fuel flow meter or the attached tube assemblies; or (3) If it is unknown if any maintenance has been done. If the fuel flow tube assembly is cracked or shows evidence of leakage, or if the fuel flow meter clamping is suspected of applying stress to the tube assembly, replace the fuel flow tube assembly with serviceable parts in accordance with the Accomplishment Instructions of AlliedSignal Alert Service Bulletin (ASB) TFE731- A73-5119, dated March 4, 1999, and in accordance with the Accomplishment Instructions of Astra Alert Service Bulletin 1125- 73A-189, dated March 4, 1999, prior to further flight. (b) Inspect the fuel flow tube assembly, P/N 3061157-2, within 25 hours TIS after the effective date of this AD, in accordance with OIW TFE731-40G-99-01, dated January 7, 1999, Compliance/Accomplishment Instructions, step (1)(a) through step (1)(b), if the fuel control or fuel flow meter has not been removed or replaced since new and maintenance has not been done which required the removal of the clamping that supports the fuel flow meter or the attached tube assemblies. If the fuel flow tube assembly is cracked or shows evidence of leakage, or if the fuel flow meter clamping is suspected of applying stress to the tube assembly, replace the fuel flow tube assembly and fuel flow meter mounting bracket with serviceable parts in accordance with the Accomplishment Instructions of AlliedSignal Alert Service Bulletin (ASB) TFE731-A73-5119, dated March 4, 1999, and in accordance with the Accomplishment Instructions of Astra Alert Service Bulletin 1125-73A-189, dated March 4, 1999, prior to further flight. (c) Within 30 days after the effective date of this AD, replace fuel flow tube assembly, P/N 3061157-2 and existing fuel flow meter mounting bracket with serviceable parts in accordance with the Accomplishment Instructions of AlliedSignal Alert Service Bulletin (ASB) TFE731-A73-5119, dated March 4,1999, and in accordance with the Accomplishment Instructions of Astra Alert Service Bulletin 1125-73A-189, dated March 4, 1999. (d) If the flexible fuel line assembly, P/N 3061288-1, and fuel flow meter mounting bracket, P/N 3061293-1, are installed, or if rigid fuel flow tube assembly P/N 3060999-2 is installed, no further action is required and the requirements of this AD have been completed. (e) 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. 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 Aircraft 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 Los Angeles Aircraft Certification Office. (f) Special flight permits may be issued in accordance with Sec. Sec. 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. (g) The inspection and part replacement shall be done in accordance with the following service information: ---------------------------------------------------------------------------------------------------------------- Document No. Pages Revision Date ---------------------------------------------------------------------------------------------------------------- TFE731-40G-99-01, AlliedSignal 3 Original..................... January 7, 1999. Inc. Operator Information Wire. TFE731-A73-5119, AlliedSignal 10 Original..................... March 4, 1999. Inc. Alert Service Bulletin. 1125-73A-189, Astra Alert Service 8 Original..................... March 4, 1999. Bulletin. ---------------------------------------------------------------------------------------------------------------- [[Page 16624]] 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 of the AlliedSignal Service Bulletin and Operator Information Wire may be obtained from AlliedSignal Aerospace Services Attn: Data Distribution, M/S 64-3/2101-201, P.O. Box 29003, Phoenix, AZ 85038-9003; telephone (602) 365-2493. Copies of the Astra Service Bulletin may be obtained from Galaxy Aerospace Company, Attn: Publications, One Galaxy Way, Alliance Airport, Fort Worth TX, 76177; telephone (817) 837-3740, FAX (817) 837-3739. 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. (h) This amendment becomes effective on April 21, 1999. Issued in Burlington, Massachusetts, on March 25, 1999. Jay J. Pardee, Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 99-8093 Filed 4-5-99; 8:45 am] BILLING CODE 4910-13-U