Service difficulty report · Check Valve · Doug MD11F

Difficulty date
February 27, 2011
Submitted
February 28, 2011
Operation
Air carrier
Aircraft
N277UP
Make and model
Doug MD11F
Aircraft serial
48578
Part
Check Valve
Condition
Faulty
Location
Nr 3 Fuel Tank
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

EMERGENCY DECLARED - LVL 2 TANK WING OVERFILL TO FUEL INBALANCE, FUEL IMBALANCE. FUEL OFF SCHEDULE. NR 3 TANK GAUGE INDICATED 41.700. SUSPECT FLOAT SWITCH OR FILL VALVE AFTER CONFERMING WITH AMC SDF. COULD NOT FILL NR 3 TANK. FUEL WAS MOVING FROM UPR AUX TO NR3 W/AUX TRANSFER PUMPS ON AND NO FILL VLV OR FLOW INDICATION ON SYNOPTIC. T/S C/O AND PERFORMED FSC R-T-S-TEST IAW AMM 28-08-00-5, REV69, DATE11-0 1-10. FOUND SATIS. C/O FUEL QTY BITE TEST IAW AMM 28-41-00-5 REV69, 11 -01-10. FOUND SATIS. FOUND NR 3 TANK TRANSFER PUMP CHECK VLV AT FAULT. DEFERRED ITEM IAW MEL 28-22-4. DMP C/W. FOUND OK. DMI OPENED.

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