Airworthiness directives › 98-23-06
AD 98-23-06 Airworthiness Directives; General Electric Aircraft Engines CJ610 Turbojet and CF700 Series Turbofan Engines
Makes named: commander. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
General Electric Aircraft Engines (GEAE) CJ610 series turbojet and CF700 series turbofan engines, with combustor liner assemblies, part number (P/N) 6008T94G03, identified by serial number (S/N) or otherwise specified in Appendix 1 of this AD, installed. These engines are installed on but not limited to the following aircraft: Dassault-Aviation Fan Jet Falcon 20 series, Sabreliner NA265 series, Learjet 20 [[Page 59701]] series, Israel Aircraft Industries Westwind series, Hansa Jet, Aero Commander Jet Commander. Appendix 1.--Serial Number Combustion Liners (Sorted Alphanumerically) ------------------------------------------------------------------------ 1763...................................... GGM82 181....................................... GGM830 1939...................................... GGMB7019 318-1..................................... GGMH2135 318-2..................................... GGMM1218 35........................................ GKAPL77 497....................................... OG2250 564....................................... ST000891 900206.................................... ST00247 910205.................................... ST00276 GGM00028.................................. ST00303 GGM00518.................................. ST00391 GGM00536.................................. ST00488 GGM00585.................................. ST00623 GGM00893.................................. ST00808 GGM59515.................................. ST00840 GGM59675.................................. ST00896 GGM59801.................................. ST01042 GGM60028.................................. ST01142 ------------------------------------------------------------------------ Additional Liners, With Serial Number Markings Unknown Any other serial number combustion liner, part number 6008T94G03, following repair or overhaul which included installation of inner shell, P/N 5016T30G02, or installation of outer shell, P/N 6008T95G01, during the period from May 16, 1997, through February 13, 1998, and if approved for return to service by: The Jet Engine Shop (also known as 3d Industries, or 3DI, or identified by Certificate Number CRS J3DR866N), 4553 Keller Springs Road, Dallas, Texas 75248. 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.
Compliance
Required as indicated, unless accomplished previously. To prevent combustor liner cracking at multiple locations, progressing to liner fragmenting and combustor casing burnthrough, which could result in an engine fire, accomplish the following: (a) Prior to further flight, for any combustor liner identified by serial number (S/N), or otherwise identified in Appendix 1 of this AD, remove from service and replace with a serviceable part. (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 record search requirements of this AD can be accomplished. (d) This amendment becomes effective on November 20, 1998. Issued in Burlington, Massachusetts, on October 30, 1998. David A. Downey, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 98-29602 Filed 11-4-98; 8:45 am] BILLING CODE 4910-13-U
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