Service difficulty report · Fuel Sys · Boeing 75724APF

Difficulty date
December 16, 2025
Submitted
December 17, 2025
Operation
Air carrier
Aircraft
N421UP
Make and model
Boeing 75724APF
Aircraft serial
25281
Aircraft time
35,656 hours, 23,265 cycles
Part
Fuel Sys
Condition
Malfunctioned
Location
Zone 500
Stage of operation
LD
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

LANDED WITH NO CENTER FUEL. 10.8 ON SHUTDOWN. ADDED 69 GALS 400 LBS AND LT 9.1 C2.4 R7.8. LEAKING FUEL FROM RT TANK TO CENTER TANK. PERFORMED TANK TO TANK TRANSFER TO TRANSFER FUEL OUT OF THE CENTER IAW AMM 28-26-00-652-076. LEFT TANK IS AT 9.4, CENTER TANK AT 0.0, RIGHT TANK AT 9.5. NO LEAKS DETECTED. A/C OK FOR SERVICE.

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