What was found
AIRCRAFT WAS GROUNDED. FUEL IMBALANCES BETWEEN RIGHT AND LEFT WINGS THREE TIMES THROUGHOUT A 2 HOUR FLIGHT IN EXCESS OF 500 LBS. REMOVED AND REPLACED CENTER TANK FUEL CROSSFEED VALVE PER AMM 28-22-21. OPERATIONAL AND LEAK CHECK GOOD.
- Difficulty date
- August 17, 2017
- Submitted
- August 23, 2017
- Operation
- Air carrier
- Aircraft
- N920AN
- Make and model
- Boeing 737823
- Aircraft serial
- 29521
- Aircraft time
- 52,892 hours, 21,307 cycles
- System (JASC)
- 2824 · Fuel Transfer Valve
- Part
- Flow Valve
- Part number
- 125334D2
- Part serial
- U15012
- Condition
- Faulty
- Location
- Fuel System
- Part time
- 7,175 hours, 2,902 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.