Airworthiness Directive · Amendment 39-15619 · General Electric Co. (GE) CF34-8E Series Turbofan Engines
General Electric Co. (GE) CF34-8E Series Turbofan Engines
Superseded. A later AD replaced this one: AD 2009-24-06. Comply with the one in force.
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.
The FAA is adopting a new airworthiness directive (AD) for GE CF34-8E series turbofan engines with certain part number (P/N) full authority digital engine controls (FADECs) installed. This AD requires reprogramming the FADEC software from version 8Ev5.40 to an FAA- approved software version. 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.
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.
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.
After the effective date of this AD, don't install any FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, onto any CF34-8E engine.
