Service difficulty report · O-Ring · Boeing 757324

Difficulty date
November 6, 2025
Submitted
November 10, 2025
Operation
Air carrier
Aircraft
N75853
Make and model
Boeing 757324
Aircraft serial
32812
Aircraft time
67,761 hours, 22,078 cycles
Engine
Rroyce RB211535E4B3
Part
O-Ring
Condition
Leaking
Location
Nr 2 Fuel Pump
Part time
175 hours, 55 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
B, E, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CONFIRMED FUEL LEAK RIGHT ENGINE. F/O WENT INTO CABIN AND VISUALLY OBSERVED FUEL SPRAYING OUT OF ENG 2. LOST APPROX 2K LBS IN LESS THAN 10 MINUTES. CREW SHUT DOWN ENG, WINDMILL TIME 23 MINUTES. . OPENED NR 2 ENG FAN COWLS. FOUND DAMAGED O-RING AND FLANGE ON HIGH PRESSURE FUEL PUMP. REMOVED AND REPLACED HIGH PRESSURE FUEL PUMP. RUNS AND LEAK CHECKS OK. IAW AMM 73-11-03-404-016-R04.