# SDR 99UAL900134

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N994UA
- Make and model: Boeing 737291
- Aircraft serial: 22384
- Engine: Pwa JT8D17
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Apu
- Condition: Malfunctioned
- Location: Cabin
- Component: 655280915
- Stage of operation: DE
- Nature of condition: J, N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900134

## Discrepancy

APU FIRE WARNING. *S/D* INSPECTED APU, FOUND NO EVIDENCE OF FIRE.  CHECKED LOOPS, CONNECTORS AND OHMED OUT.  FOUND NO SHORTS OR OPENS.  FOUND OIL ON CONNECTOR AND CLEANED.  REPLACED FIRE DETECTION UNIT AS A PRECAUTION.  REPLACED FIRE BOTTLE AND SQUIB.  RAN APU, OPERATION 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.