Service difficulty report · Switch · Boeing 72725C

Difficulty date
June 17, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N946UP
Make and model
Boeing 72725C
Aircraft serial
19721
Part
Switch
Condition
Leaking
Location
Nr1 Fuel Tank
Stage of operation
TO
Nature of condition
N
Precautionary procedure
A

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

What was found

INSPECTION TYPE:SI, NR 1 FUEL QUANTITY ROLLED BACK AT TAKEOFF FROM 10500 TO 5000 LBS. AIRCRAFT CONTROL WAS DEGRADED. ALTERNATE FUEL FEED ESTABLISHED TO COMPENSATE FOR INBALANCE. FUEL UPLIFT IN GALLONS DID NOT SHOW ANY DISCREPANCIES. IN FLIGHT EMERGENCY DECLARED. NRC 944172 GENERATED. *S/D* TROUBLESHOT FUEL QTY INDICATING SYSTEM FOR NR 1 TANK. FOUND ALL 4 FUEL PRESS SWITCHES ON LEFT L/E LEAKING FUEL. DAMAGED WIRING AT NR 1 TANK BOSSING PLUS CONNECTOR D578P FUEL SOAKED AND WIRE W436-512-22 DAMAGED AT SM17. REPAIRED IAW 28-41-02, 28-43-01 AND MM 28-41-02. NR 1 TANK FUEL QTY INDICATION SYSTEM FUNCTIONAL TESTS GOOD.

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