# SDR EIA2005146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 28, 2005
- Submitted: August 26, 2005
- Operation: Air carrier
- Aircraft: N485EV
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 20712
- Aircraft time: 103,080 hours, 25,135 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Chafed
- Location: Apu Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EIA2005146

## Discrepancy

INTERMITTENT FIRE WARNING INDICATION ON APU DURING FLIGHT.  PULLED A LOOP CB FOR APU FOR FIRE WARNING SYSTEM WHICH STOPPED INTERMITTENT FIRE WARNING.  FOUND WIRING ON APU A LOOP FIRE WARNING CONNECTION CHAFING WITH STRUCTURE.  REPAIR PER STANDARD PRACTICE 20-3--22,  OPS CHK OK PER MM 26-25-00.

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