B767 Undifferentiated or Other Model
Maintenance Airframe; Maintenance Powerplant
Time Pressure
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
Flight Crew Diverted; General Flight Cancelled / Delayed; General Maintenance Action
Company Policy; Procedure; Aircraft; Human Factors
Aircraft X diverted to ZZZ with a left hand wing fuel leak. This was the second diversion in two days and the third in a month. Maintenance found the left hand wing overwing fill port leaking. Maintenance Control called an outside vendor group to do the repairs. The repairs required fuel tank entry per GMM 05-XX-XX item X Company fuel tank repair team will support all international locations. The company deviated from this policy. Company also sent a non-tank entry qualified inspector to perform the buyback task in AMM 28-XX-XX-XXX-XXX this AMM is also written wrong 28-XX-XX-XXX-XXX item X has you closing up the fuel panel after leak checks this item should be moved between item XX and XY.
Technician reported company deviated from approved maintenance procedures when repairing a fuel leak.