Airworthiness directives › 2007-21-06
AD 2007-21-06 Airworthiness Directives; General Electric Company (GE) CF6-80C2A5F Turbofan Engines
Applicability*9
This AD applies to General Electric Company (GE) CF6-80C2A5F turbofan engines, installed on, but not limited to, Airbus A300F4-605R airplanes.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Interim Action (f) These actions are interim actions due to the on-going investigation, and we may take further rulemaking actions in the future based on the results of the investigation and field experience. Engine ECU Software Removal (g) Within 24 months after the effective date of this AD, remove software version 8.4.E or older versions, from the engine ECUs, part numbers 1797M63P01, 1797M63P02, 1797M63P03, 1797M63P04, 1797M63P05, 1820M99P01, 1820M99P02, 1820M99P03, 1820M99P04, and 1820M99P05. Previous Software Versions of ECU Software (h) You may use an ECU installed on an engine with a software version of 8.4.E or older for no longer than 24 months after the effective date of this AD. (i) Once software version 8.4.E or older has been removed and new FAA-approved software version is installed in an ECU, reverting to version 8.4.E or older of ECU software in that ECU is prohibited. (j) After 24 months from the effective date of this AD, use of an ECU with a software version of 8.4.E or older is prohibited. Alternative Methods of
Unsafe condition
This AD results from reports of engine flameout events during flight, including reports of events where all engines simultaneously experienced a flameout or other adverse operation. We are issuing this AD to minimize the potential of an all-engine flameout event, due to ice accretion and shedding during flight. Exposure to ice crystals during flight is believed to be associated with these flameout events.
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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