# SDR ASAA2018121427379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2018
- Submitted: December 15, 2018
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 47,019 hours, 14,153 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Valve
- Part number: 125334D1
- Part serial: AA84574
- Condition: Out Of Adjust
- Location: Fuel Crossfeed
- Part time: 47,019 hours, 14,153 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018121427379

## Discrepancy

TECH SERVICE REQUEST. FOLLOW-UP TO REPORTS OF FUEL IMBALANCE. GROUNDED - YES. ACCOMPLISHED CROSSFEED VALVE FUNCTIONAL CHECK, FOUND FUEL TRANSFERRING. ACCOMPLISHED CROSSFEED VALVE ALIGNMENT, REF B737-800 AMM TASK 28-22-21-820-801. REPEATED FUNCTIONAL CHECK NO FUEL TRANSFERRED. ADJUSTED AND REINSTALLED CROSSFEED VALVE ADAPTER, REF B737-800 AMM TASK 28-22-21-400-805.

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