# SDR ASAA12511075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2012
- Submitted: February 10, 2012
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 14,320 hours, 4,593 cycles
- System (JASC): [4970 · APU Indicating System](https://openairdocs.org/jasc/4970)
- Part: Sensor
- Part number: MS280341
- Condition: Defective
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511075

## Discrepancy

DURING TAXI OUT THE APU WAS SHUT DOWN.  SHORTLY AFTER THE APU FAULT LIGHT ILLUMINATED.  THE LIGHT WENT OUT ABOUT 9 MINUTES LATER.  VERIFIED FAULT FROM CDU ON FLT LEGS 0 1 & 2.  REPLACED INLET TEMP SENSOR REF MM 49 61 31 NO FAULT FOUND ON CDU AFTER REPLACEMENT OPS & LEAK CK GOOD.  ALSO FOUND THE CONNECTOR CLOCKED INCORRECTLY PER MM RECLOCKED PER MM 49 61 31.

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