SDR FDEA201512063928

Service difficulty report · Electronic Unit · Doug MD11F

Difficulty date: December 6, 2015
Submitted: December 7, 2015
Operation: Air carrier
Aircraft: N590FE
Make and model: Doug MD11F
Aircraft serial: 48505
Aircraft time: 78,307 hours, 17,473 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Electronic Unit
Part number: 367040086
Part serial: 1008
Condition: Malfunctioned
Location: Fuel System
Part time: 35,392 hours, 8,554 cycles
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

AT TOP OF LEVEL OFF, FUEL USED QTY COMPARED TO WHAT WAS ACTUAL, FMC 1 REFLECTED CORRECT AMOUNT, FMC 2 SHOWED 10K LBS LOW. CURRENT GROSS WEIGHT ALSO DIFFERED BY SAME VALUES REFLECTIVE ALSO IN FMC'S. QRH REFERENCED, NO SPECIFIC GUIDANCE TO FOLLOW, DECLARED EMER, LANDING UNEVENTFUL. REPLACED SEM UNIT IAW AMM 28-41-92-4.

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