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Airworthiness directives › 95-09-02

AD 95-09-02 Airworthiness Directives; AlliedSignal Engines (Formerly Textron Lycoming) LTS101 Series Turboshaft and LTP101 Series Turboprop Engines

1995-05-10
1995-04-25
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Engine
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Makes named: lycoming. Read the applicability below — it usually turns on serial or part numbers too.

Applicability*9

AlliedSignal Engines (formerly Textron Lycoming) LTS101 series turboshaft and LTP101 series turboprop engines incorporating Chandler Evans (CECO) engine fuel pumps, Part Numbers 4-301-128-01, -02, -03, -04, -05, -06, -07, -08, -09, and -10. These engines are installed on but not limited to the following single- engine aircraft: Eurocopter France (formerly Aerospatiale) AS350D series helicopters and Airtractor AT302, PAC Aero Cresco, and Page (Ayres S-2R) Thrush airplanes. This AD is not applicable to engines installed on twin-engine aircraft.

Compliance

Required as indicated, unless accomplished previously. To prevent engine fuel pump failure, which can result in total engine power loss and possible loss of the aircraft, remove CECO engine fuel pumps, return to CECO for inspection, and replace with a serviceable part, in accordance with the following schedule: [[Page 20191]] (a) Remove from service CECO engine fuel pumps with greater than 1,300 hours time in service (TIS) since new or overhaul on the effective date of this airworthiness directive (AD), within the next 100 hours TIS after the effective date of this AD, in accordance with AlliedSignal Engines Service Bulletin (SB) No. LT101-73-20- 0165, Revision 1, dated January 3, 1995, or previous revision. (b) Remove from service CECO engine fuel pumps with greater than 850 hours TIS but less than or equal to 1,300 hours TIS since new or overhaul on the effective date of this AD, within the next 150 hours TIS after the effective date of this AD, in accordance with AlliedSignal Engines SB No. LT101-73-20-0165, Revision 1, dated January 3, 1995, or previous revision. (c) Remove from service CECO engine fuel pumps with less than or equal to 850 hours TIS since new or overhaul on the effective date of this AD, within the next 300 hours TIS after the effective date of this AD, or prior to accumulating 1,000 hours TIS since new or overhaul, whichever occurs first, in accordance with AlliedSignal Engines SB No. LT101-73-20-0165, Revision 1, dated January 3, 1995, or previous revision. (d) Thereafter, remove from service CECO engine fuel pump at intervals not to exceed 900 hours TIS since the last inspection in accordance with the Accomplishment Instructions of AlliedSignal Engines SB No. LT101-73-20-0165, Revision 1, dated January 3, 1995, or previous revision. (e) Engine fuel pumps that exhibit wear beyond the limits specified in AlliedSignal Engines SB No. LT101-73-20-0165, Revision 1, dated January 3, 1995, or previous revision, may not be returned to service. (f) For the purpose of this AD, a serviceable part is defined as a new part, or a part that has been inspected by CECO in accordance with AlliedSignal Engines SB No. LT101-73-20-0165, Revision 1, dated January 3, 1995, or previous revision, and that has not yet accumulated 900 hours TIS since new, or since inspection by CECO. (g) 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. The request should be forwarded through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Engine Certification Office. Note: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Engine Certification Office. (h) 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. (i) The actions required by this AD shall be done in accordance with the following service bulletin: ------------------------------------------------------------------------ Document No. Revision Pages Date ------------------------------------------------------------------------ AlliedSignal Engines SB No. 1 1-3 January 3, 1995. LT101-73-20-0165. Total Pages: 3. Chandler Evans SB No. 73-13. 1 1-5 January 3, 1995. 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 AlliedSignal Engines, 550 Main Street, Stratford, CT 06497; telephone (203) 385-2000. Copies may be inspected at the FAA, New England Region, Office of the Assistant Chief 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. (j) This amendment supersedes priority letter AD 94-19-01, issued September 2, 1994. (k) This amendment becomes effective on May 10, 1995. Issued in Burlington, Massachusetts, on April 17, 1995. James C. Jones, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 95-10134 Filed 4-21-95; 11:19 am] BILLING CODE 4910-13-P

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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1