# SDR ASAA2013050394691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2013
- Submitted: May 6, 2013
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 19,597 hours, 6,046 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Switch
- Part number: 2688072
- Condition: Failed
- Location: Nr 2 Hmu
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013050394691

## Discrepancy

ON PRE-FLIGHT, FOUND NR 2 ENGINE, BLUE ANNUNCIATOR ON OVERHEAD, ENGINE VALVE CLOSED EXTINGUISHES IMMEDIATELY ON NR 2 ENGINE CUTOFF LEVER BEING OPENED.  NO TRANSIT OF VALVE INDICATION) ALSO THIS BLUE ANNUNCIATOR DOES NOT CORRECTLY PRESS TO TEST.  ACFT GROUNDED.  REPLACED NR 2 ENGINE HMU HPSOV SWITCH REF AMM 73-21-09-000-F00/400-801-F00.  OP CHECK NORMAL.

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