# SDR ASAA2016021615483

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2016
- Submitted: February 22, 2016
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 33,855 hours, 10,258 cycles
- System (JASC): [5247 · Auxiliary Power Unit (APU) Doors](https://openairdocs.org/jasc/5247)
- Part: Door
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016021615483

## Discrepancy

APU DETECTOR INOPERATIVE LIGHT FLICKERS.  ACFT GROUNDED.  REMOVED AND INSTALLED NEW APU DOOR, COWLING FIRE DETECTOR ASSY REF AMM 26-15-01-000-802, 26-15-01-400-802.  RETURNED SYS TO NORMAL.  PERFORMED SYS TEST REF AMM 26-15-00.  SYS CKS NORMAL.

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