Airworthiness directives › 2008-16-01
AD 2008-16-01 Airworthiness Directives; General Electric Co. (GE) CF34-8E Series Turbofan Engines
Applicability*9
This AD applies to General Electric Co. (GE) CF34-8E series turbofan engines with full authority digital electronic controls (FADECs), part numbers (P/N) 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, installed. These engines are installed on, but not limited to, Empresa Brasileira de Aeronautica S.A. (EMBRAER) ERJ 170 series airplanes.
Compliance
You are responsible for having the actions required by this AD performed within 660 flight hours time-in-service after the effective date of this AD, unless the actions have already been done. Removal of CF34-8E FADEC Software Version 8Ev5.40 (f) For CF34-8E engines with a FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, installed, do either of the following: (1) Replace the FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, with a FADEC P/N not listed in paragraph (c) of this AD. Or, (2) For CF34-8E engines with a FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, installed, reprogram the FADEC software to an FAA approved version. Installation Prohibition (g) After the effective date of this AD, don't install any FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, onto any CF34-8E engine. Alternative Methods of
Unsafe condition
This AD results from six loss of thrust control events from the same software fault scenario. We are issuing this AD to prevent loss of thrust control and controllability of the airplane.
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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