# SDR ASAA2016022315642

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2016
- Submitted: February 25, 2016
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 32,714 hours, 9,780 cycles
- System (JASC): [4960 · APU Controls](https://openairdocs.org/jasc/4960)
- Part: Switch
- Part number: 111AT25
- Condition: Failed
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016022315642

## Discrepancy

APU WILL NOT SHUTOFF WITH APU SWITCH IN OFF.  ACFT GROUNDED. INTERMITTENT APU SWITCH, VERIFIED ON APU BITE, INPUT MONITORING PAGE 2/4.  APU ON SWITCH AND APU OFF SWITCH BOTH SHOWS, NO, FOR UP TO A MINUTE BEFORE YES SHOWED ON APU OFF SWITCH INPUT.  R & R S248 APU MASTER SWITCH REF WDM 49-62-11.  INPUT AGREES WITH NEW SWITCH POSITION, OPS CHECKED APU NORMAL.

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