Service difficulty report · Compensator · Boeing 7377H4

Difficulty date
November 10, 2020
Submitted
November 16, 2020
Operation
Air carrier
Aircraft
N903WN
Make and model
Boeing 7377H4
Aircraft serial
32457
Aircraft time
43,651 hours, 26,167 cycles
Part
Compensator
Condition
Out Of Tolerance
Location
Lt Wing Fuel
Stage of operation
CR
How discovered
9
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

ENROUTE FROM DEN-MDW FUEL GUAGES SHOWED IMBALANCE 600 HEAVY ON RIGHT, REBALANCED THE RIGHT. DURING REL ENT CURVES SHOWED GOOD IMBALANCE HEAVY ON LEFT, REBALANCED AGAIN. LANDED WITH CLOSE TO PLANNED FUEL. PERFORMED TAN AND COMPENSATOR UNITS WET CAPACITANCE CHECK ON NR 1 AND NR 2 FUEL TANKS, FOUND NR 1 TANK COMPENSATORS NR F11 AND F12 OUT OF RANGE. NR 2 TANK COMPENSATORS ARE NORMAL, REF AMM 28-41-21. OK TO CONTINUE, PER MEL 28-6-02 SP NR 1; SP NR 3; SP NR 28 CAPPED AND STOWED NR 1 TANK F1 15 CONNECTOR D11312 TRACKING NR 58772.

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