# SDR NA0207001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2004
- Submitted: November 17, 2004
- Operation: Air carrier
- Aircraft: [N70X](https://openairdocs.org/aircraft/N70X), registered now
- Make and model: Braero HS125700A
- Aircraft serial: NA0207
- Aircraft time: 9,538 hours, 6,252 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 67321000500
- Condition: False Indication
- Location: Apu Bay
- Component: Apu, Sundstrandem
- Component part number: T62T39
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: F, H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NA0207001

## Discrepancy

APU FIRE WARNING INDICATION AFTER APPROXIMATELY 15 MINUTES OF APU OPERATION ON GROUND.  CREW DISCHARGED FIRE EXTINGUISHING SYSTEM AND SHUT DOWN APU.  TROUBLESHOT PROBLEM TO A BAD BOTTOM APU HEAT DETECTOR.  REPLACE HEAT DETECTOR WITH NEW UNIT.  REPLACE FIRE BOTTLE/SQUIB ASSEMBLY WITH OVERHAULED UNIT.  NO ACTUAL OVERHEAT/FIRE OCCURRED.

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