# SDR ASAA2016030815837

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2016
- Submitted: March 10, 2016
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 8,605 hours, 2,798 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Switch
- Part number: 2EN19RB
- Condition: Failed
- Location: Apu Inlet Door
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016030815837

## Discrepancy

WHILE ACCOMPLISHING HORIZONTAL STABILIZER LUBE T/C 78327000, FOUND APU INLET DOOR POSITION SENSOR LOOSE.  ACFT GROUNDED.  R & R APU INLET DOOR POSITION SWITCH & DOUBLER REF AMM 49-15-41.  OPS CHECKS NORMAL.

---
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.