Service difficulty report · Access Panel · Boeing 7879

Difficulty date
June 6, 2021
Submitted
June 7, 2021
Operation
Air carrier
Aircraft
N28987
Make and model
Boeing 7879
Aircraft serial
66146
Aircraft time
459 hours, 54 cycles
Part
Access Panel
Part number
124Z3110101
Condition
Leaking
Location
Lt Wing
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

FUEL LEAKING LEFT WING INBOARD FLAP,OUTBOARD CANOE FAIRING. FOUND LEAK ORIGINATING FROM FUEL ACCESS PANEL 533CB. FOUND SCREW S LOW TORQUE @ 15LB/IN, RETORQUED ALL SCREWS PER AMM 28-11-01, L EAK CHECK STILL FAILED. DEFUELLED LEFT MAIN TANK, REMOVED PANEL 533CB, INSPECTED SEAL BUT FOUND NO DEFECT. INSPECTED MATING SURF ACES FOUND NO FAULT, CLEANED PANEL SEALS AND MATING SURFACES, ADD EMP:U332741 REINSTALLED PANEL AND TORQUED TWICE PER AMM 28-11-01, RE-FUELLED LEFT MAIN TANK AND LEAK CHECKED FOR 10MINS, NO LEAKS EVIDENT. SDR RAISED DUE TO FUEL LEAK LOCATION (NEAR LEFT ENGINE EXHAUST PATH) AND ITS POTENTIAL HIGHER HAZARD.

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