Service difficulty report · Compensator · Boeing 7377H4

Difficulty date
July 24, 2026
Submitted
July 29, 2026
Operation
Air carrier
Aircraft
N250WN
Make and model
Boeing 7377H4
Aircraft serial
34972
Aircraft time
65,186 hours, 39,629 cycles
Part
Compensator
Condition
Leaking
Location
Zone 400
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
E

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

What was found

INFLIGHT, NR 2 FUEL IMBALANCE CLIMBING THROUGH FL 250, NOTICED NR 2 FUEL QTY DECREASE BELOW NR 1 ENGINE QTY. FUEL IMBALANCE WAS GREATER THAN 3,000 LBS. CREW RAN QRH & SHUTDOWN THE ENGINE. UPON ACFT REACHING THE GATE, INSPECTED FOR OBVIOUS SIGNS OF A FUEL LEAK IAW AMM 28-11-00. FOUND NO OBVIOUS SIGNS OF A FUEL LEAK COMING FROM RT ENGINE RT WING OR WHEEL WELL AREAS. CHECK FUEL QTY AT THE REFUEL/DEFUEL PANEL. LT WING HAD 6260 AND THE RT WING 3910 CENTER READ ZERO. CHKD FUEL QTY ON EICAS FOUND TO BE CONSISTENT WITH THE FUEL PANEL. R & R RT WING TANK COMPENSATOR & TANK UNITS F2 F3 AND F5 IAW AMM 28-41-21.

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