Service difficulty report · Tank Unit · Boeing 7378H4

Difficulty date
July 20, 2026
Submitted
July 25, 2026
Operation
Air carrier
Aircraft
N8662F
Make and model
Boeing 7378H4
Aircraft serial
36936
Aircraft time
38,474 hours, 18,779 cycles
Part
Tank Unit
Part number
202000104
Part serial
BN784439
Condition
Leaking
Location
Zone 600
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

DURING CLIMB, NR 2 FUEL TANK QTY DECREASED TO OVER 1000 LBS IMBALANCE WITH 3000 LBS OF FUEL IN THE CENTER. INSPECTED ACFT FOR FUEL LEAKS NONE FOUND. PERFORMED FQIS BITE IAW FIM 28-41, TASK 801, NO FAULTS FOUND. STICK READINGS SHOW 6660LBS IN NR 1 & 2 TANKS WITH FLT DECK READINGS SHOWING NR 1 TANK AT 6670 & NR 2 TANK SHOWING 7560. INSTALLED BUSSING PLUG AT D11314 FOR NR 2 TANK. OK TO CONTINUE ON MEL 28-6-01 SP1 SP3 AND SP28 MDDR 330340. R & R RT WING TANK COMPENSATOR AND F8 F9 F10 TANK UNITS IAW AMM 28-41-21. OPS CHKD GOOD.

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