What was found
UNWANTED FUEL TRANSFER PROBLEM. 10-9-07 AFTER TROUBLESHOOTING, ISOLATED PROBLEM TO CRACKED & LEAKING LT SCAVENGE SYSTEM. INSTALLED NEW SCAVENGE LINE PN 343U1023-35 REF 28-00-00-0201. SCAVENGE SYS OP CHECKS OK FOR SERVICE.
- Difficulty date
- September 13, 2007
- Submitted
- September 21, 2007
- Operation
- Air carrier
- Aircraft
- N199UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28717
- Aircraft time
- 40,859 hours, 4,954 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2820 · Aircraft Fuel Distribution System
- Part
- Line
- Condition
- Leaking
- Location
- Fuel Transfer
- Stage of operation
- NR
- 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.