Service difficulty report · Processor · Boeing 737890

Difficulty date
December 6, 2015
Submitted
December 8, 2015
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
28,821 hours, 8,853 cycles
Part
Processor
Part number
3012803
Part serial
2183
Condition
Failed
Location
Fuel Qty
Part time
35,326 hours, 10,398 cycles
Stage of operation
CR
How discovered
9
Nature of condition
N
Precautionary procedure
O

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

What was found

APPROXIMATELY 3:10 INTO FLIGHT WHILE BURNING FUEL, TANK NR 1 FUEL QUANTITY INDICATED 8560 LBS WHILE NR 2 FUEL QUANTITY INDICATOR 7970 LBS AT THIS POINT BOTH FUEL USED TOTALIZERS INDICATED IDENTICAL FUEL BURN TO THE EXACT POUND BETWEEN ENGINE NR 1 AND ENGINE NR 2 AT CONCLUSION OF FLIGHT, NR 1 FUEL QUANTITY INDICATED 3400 LBS AND NR 2 FUEL QUANTITY INDICATED 3600 LBS. FUEL USED TOTALIZERS INDICATED AS FOLLOWS : 17,440 BURNED ENGINE NR 1 AND 17360 BURNED FOR ENGINE NR 2. ACFT GROUNDED. R & R FUEL QUANTITY PROCESSOR UNIT REF AMM 28-41-81. OPS TEST NORMAL REF AMM 28-41-00. NO FAULTS.