Service difficulty report · Probe · Boeing 7377BD

Difficulty date
February 8, 2021
Submitted
February 12, 2021
Operation
Air carrier
Aircraft
N7751A
Make and model
Boeing 7377BD
Aircraft serial
36717
Aircraft time
41,938 hours, 21,324 cycles
Part
Probe
Condition
Out Of Tolerance
Location
Fuel Qty
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

APPRX 45 MINS INTO FLIGHT; RT FUEL QUANITY INDICATOR WAS AMBER; READING 1300 LBS LESS FUEL THAN LEFT FUEL QUANITY INDICATOR. RAN IMBAL QRH. CROSS FEED VALVE WAS CLOSED ENTIRE TIME & NO BALANCING WAS INITIATED. APPRX 5 MIN LATER FUEL QUANITY ON RT INDICATOR STARTED RISING AND RETURNED TO NORMAL & REMAINED NORMAL/REST OF FLIGHT / DMA 0286444 FOUND NO WATER IN FUEL TANKS. C/W TANK & COMP RESISTANCE & CAPACITANCE CHECK IAW AMM 28-41-21-710-810 & FOUND COMP PROBE 1; PROBE 7; & PROBE 9 OUT OF RANGE. ITEM REMANES ON MEL

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