# SDR ASAA12511578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2012
- Submitted: May 23, 2012
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 1,149 hours, 381 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Failed
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511578

## Discrepancy

AFTER LANDING DURING TAXI IN, ATTEMPTED ONE START ON APU.  APU FAILED TO START WITH LOW OIL PRESSURE LIGHT ILLUMINATED.  GROUNDED YES.  PERFORMED APU BITE REF FIM 49-60, TASK 801.  FOUND FAULT 49-11-019.  PERFORMED FIM TASK 49-10-00-810-801.  APU OPERATES 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.