# SDR DL73K992779

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N309DL
- Make and model: Boeing 737232
- Aircraft serial: 23081
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Malfunctioned
- Location: Apu Bay
- Stage of operation: AP
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL73K992779

## Discrepancy

ATTEMPTED APU START PRIOR TO LANDING, HAD INDICATION OF APU FIRE (LIGHTS AND BELLS).  FIRE HANDLE PULLED, BOTTLE DISCHARGED AND LIGHT EXTINGUISHED.  INSPECTED APU AREA AND EXHAUST, SUSPECT FALSE INDICATION.  REPLACED LOOP.

---
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.