Maintenance Powerplant; Maintenance Airframe
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Procedure; Incorrect / Not Installed / Unavailable Part; Human Factors
I signed for a job card with the Maintenance Reference XXX9 for Operational Checks only; [being] required during an engine test; if rejected; follow the actions noted below in the Job Card. Engines tested normally and found no further action was required. There is a possibility that four other engines were released without the Low Pressure (L/P) Fuel filter installed. Hangar. Graveyard Shift.
A Test Cell Aircraft Maintenance Technician (AMT) reports he only signed for the Operational Checks of Rolls Royce Trent-800 Engines; not for the Low Pressure (L/P) fuel filters that were later found missing on numerous; previously released Trent engines.