# SDR 9706836612

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N612US
- Make and model: Boeing 747251B
- Aircraft serial: 20357
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Wire
- Condition: Chafed
- Location: Apu
- Stage of operation: TX
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9706836612

## Discrepancy

DURING ENGINE SHUTDOWN, THE APU FIRE A-LIGHT ILLUMINATED.  FIRE BOTTLES DISCHARGED.  INSPECTION OF APU AND APU COMPARTMENT REVEALED NO EVIDENCE OF A FIRE.  CLEANED AREA AND APU GROUND RUN AND TESTED OK.  FIRE EXTINGUISHER AND SQUIB WERE REPLACED.  INSPECTED FIRE LOOP 'A' AND ASSOCIATED WIRING.  FOUND AND REPAIRED CHAFED WIRES.

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