What was found
FUEL TANK #4 LEAKS INTO CENTER TANK AT A RATE OF 100 KILOS PER 11 MINUTES, APPROX 600 PER HOUR UNCONTROLLABLY.(<P>REPLACED BAD #3 MAIN TANK TRANSFER VALVE IAW 747 AMM 28-16-05. LEAK CHECKS C/W NO LEAKS FOUND AT THIS TIME.</P>)
- Difficulty date
- April 18, 2023
- Submitted
- April 24, 2023
- Operation
- Air carrier
- Aircraft
- N408MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 29261
- Aircraft time
- 94,195 hours, 15,862 cycles
- System (JASC)
- 2800 · Aircraft Fuel System
- Part
- Transfer Valve
- Part number
- 125333
- Part serial
- P62521
- Condition
- Unknown
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.