# SDR ASAA2016080517626

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2016
- Submitted: August 8, 2016
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 9,602 hours, 3,114 cycles
- System (JASC): [4970 · APU Indicating System](https://openairdocs.org/jasc/4970)
- Part: Sensor
- Part number: MS280341
- Condition: Faulty
- Location: Apu Inlet
- Stage of operation: NR
- 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/ASAA2016080517626

## Discrepancy

AMBER FAULT LIGHT ILLUMINATES WHEN APU IS SHUTDOWN.  LIGHT EXTINGUISHES AFTER 2 MINUTES.  ACFT GROUNDED.  FOUND CURRENT FAULT 49-61223 FOR LAST 4 STARTS.  REPLACED INLET TEMP SENSOR REF FIM TASK 49-60-812 & AMM 49-61-31.  OPS CK GOOD.  NO CURRENT FAULTS.  THIS CLEARS MEL 49-1B.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.