# SDR ASAA2014051207788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2014
- Submitted: May 15, 2014
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 9,209 hours, 2,636 cycles
- System (JASC): [4970 · APU Indicating System](https://openairdocs.org/jasc/4970)
- Part: Sensor
- Part number: MS280341
- Condition: Failed
- Location: Apu Inlet Temp
- Stage of operation: TX
- 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/ASAA2014051207788

## Discrepancy

APU FAULT LIGHT CAME ON. WITHIN 5 MINUTES FAULT LIGHT WENT OUT.  SHUTDOWN APU.  ACFT GROUNDED. VERIFIED INLET TEMP SENSOR BAD, READS 300 OHMS PIN TO GROUND, IAW FIM TASK 49-60, TASK 812.  REPLACED INLET TEMP SENSOR IAW AMM 49-61-31-000-801 AND 49-61-31-400-801. RAN APU - OK NO FAULTS FOUND.

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