Airworthiness Directive · Amendment 39-21317 · Fuel control/turbine engines
GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Turboprop Engines
This AD applies to all GE Aviation Czech s.r.o. (GEAC) M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, M601F, H75-200, H80-100, H80-200, and H85-200 model turboprop engines, with a fuel control unit (FCU) part number (P/N) and serial number (S/N) listed in Appendix 1—Affected Parts of GE Aviation Czech Alert Service Bulletin (ASB) ASB-H75-73-00-00-0038 [01], ASB-H80-73-00-00-0074 [01], ASB-H85-73-00-00-0032 [01], ASB-M601D-73-00-00-0066 [01], ASB-M601E-73-00-00-0097 [01], ASB-M601F-73-00-00-0050 [01], and ASB-M601T-73-00-00-0040 [01] (single document; formatted as service bulletin identifier [revision number]), dated September 24, 2020 (the ASB), installed.
The FAA is adopting a new airworthiness directive (AD) for all GE Aviation Czech s.r.o. (GEAC) M601D-11, M601E-11, M601E-11A, M601E- 11AS, M601E-11S, M601F, H75-200, H80-100, H80-200, and H85-200 model turboprop engines. This AD was prompted by reports of engine power fluctuations occurring during ground tests. This AD requires the removal and replacement of the fuel control unit (FCU). The FAA is issuing this AD to address the unsafe condition on these products.
Before exceeding the applicable compliance time in Table 1 to paragraph (g) of this AD, remove the affected FCU and replace it with a part eligible for installation using the Accomplishment Instructions, paragraph 2, of the ASB.
After the effective date of this AD, do not install onto any engine an affected FCU with a P/N and S/N identified in Appendix 1—Affected Parts of the ASB.
The repair requirement in the Accomplishment Instructions, paragraph 2, of the ASB is not required by this AD.
(1) For the purpose of this AD, a “part eligible for installation” is a FCU with aP/N and S/N that is not identified in Appendix 1—Affected Parts of the ASB.
(2) For the purpose of this AD, a “Group 1 engine” is a GEAC model turboprop engine that has a FCU P/N and S/N listed in Appendix 1—Affected Parts, Group 1, of the ASB.
(3) For the purpose of this AD, a “Group 2 engine” is a GEAC model turboprop engine that has a FCU P/N and S/N listed in Appendix 1—Affected Parts, Group 2, of the ASB.
(4) For the purpose of this AD, a “Group 3 engine is a GEAC model turboprop engine that has a FCU P/N and S/N listed in Appendix 1—Affected Parts, Group 3, of the ASB.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
