Airworthiness Directive · Amendment 39-19705 · Fuel control/turbine engines
GE Honda Aero Engines Turbofan Engines
This AD applies to all GE Honda Aero Engines (GHAE) HF120 model turbofan engines with fuel pump metering unit (FPMU) assembly, part number (P/N) 24100-Q0A-F000, installed.
The FAA is adopting a new airworthiness directive (AD) for all GE Honda Aero Engines (GHAE) HF120 model turbofan engines with a certain fuel pump metering unit (FPMU) assembly. This AD was prompted by damage found on the permanent magnetic alternator (PMA) drive gear within the FPMU assembly. This AD requires removal of a certain FPMU assembly and its replacement with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
Within 20 engine hours after the effective date of this AD, or before accumulating 600 engine hours since new, whichever occurs later, remove the affected FPMU assembly from service and replace it with a part eligible for installation.
After the effective date of this AD, do not install on any engine an FPMU assembly, P/N 24100-Q0A-F000.
For the purposes of this AD, a “part eligible for installation” is:
(1) an FPMU assembly, P/N 24100-Q0A-G000 or P/N 24100-Q0A-F100; or
(2) an FPMU assembly, P/N 24100-Q0A-F000, that is rebuilt and marked as P/N 24100-Q0A-G000 or P/N 24100-Q0A-F100.
