What was found
GROUND TEST MESSAGE REPORT SHOWS TANK WIRING-MAIN 3, PROBE 4, SHORT LO-Z GROUND. REMOVED NR 4 PROBE FROM NR 3 MAIN F138. REPLACED 3 MAIN TANK UNIT F138. REMOVED FUEL PLATE 645AB. INSTALLED 3 MAIN FUEL PLATE 645AB, CLEARED AND CLOSED.
- Difficulty date
- January 28, 2011
- Submitted
- January 29, 2011
- Operation
- Air carrier
- Aircraft
- N181UA
- Make and model
- Boeing 747422
- Aircraft serial
- 25278
- Aircraft time
- 81,431 hours, 9,987 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2897 · Fuel System Wiring
- Part
- Wire
- Condition
- Shorted
- Location
- Fuel Cell Probe
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.