# SDR ASAA201904295171

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2019
- Submitted: April 29, 2019
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 40,430 hours, 12,054 cycles
- System (JASC): [2823 · Fuel Selector/Shut-Off Valve](https://openairdocs.org/jasc/2823)
- Part: Switch
- Part number: QA07995
- Part serial: RE21344
- Condition: Inoperative
- Location: Fuel Shutoff
- Part time: 3,234 hours, 895 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA201904295171

## Discrepancy

WHEN INTERROGATING THE FMC CDU FOR ENGINE FAULTS FOUND ENGINE NBR 2 MSG NBR 73-31072 THE FUEL FILTER SIGNALS DISAGREE. GROUNDED - YES. REMOVED AND REPLACED FUEL FILTER DIFF PRESSURE SWITCH REF B737-800 AMM 73-34-01. OPS CHECKS AND LEAK CHECK GOOD.

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