What was found
UNWANTED FUEL TRANSFER. REPLACED BOTH RT FWD AND AFT BOOST PUMP DISCHARGE VALVES. PERFORMED ITEMS 1 AND 4 REF MT28-008R2, AND DISCHARGE CK VLV FUNCTIONAL TEST. REPLACED NR 2 FUEL FLOW TRANSMITTER. NO FURTHER DEFECTS NOTED.
- Difficulty date
- August 6, 2008
- Submitted
- December 15, 2008
- Operation
- Air carrier
- Aircraft
- N216UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30549
- Aircraft time
- 32,283 hours, 4,291 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2822 · Fuel Boost Pump
- Part
- Valve
- Part number
- 32C171
- Condition
- Faulty
- Location
- Fuel System
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- W
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.