# SDR ASAA2017022719958

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2017
- Submitted: March 2, 2017
- Operation: Air carrier
- Aircraft: [N534AS](https://openairdocs.org/aircraft/N534AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35202
- Aircraft time: 24,219 hours, 7,035 cycles
- System (JASC): [2613 · Overheat Detection](https://openairdocs.org/jasc/2613)
- Part: Overheat Loop
- Part number: 90202001
- Condition: Failed
- Location: Tailpipe
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017022719958

## Discrepancy

APU OVERHEAT DETECTOR INOPERATIVE CAUTION LIGHT ILLUMINATED.  ACFT GROUNDED. REMOVED AND REPLACED M1925 APU TAILPIPE OVERHEAT DETECTOR IAW AMM 26-15-01-000-802 & AMM 26-15-00-400-802.  PERFORMED APU FIRE DETECTION OPERATIONAL TEST IAW AMM 26-15-00-710-801, ALL TESTS PASS.

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