# SDR CALA2011120900803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2011
- Submitted: December 9, 2011
- Operation: Air carrier
- Aircraft: [N72405](https://openairdocs.org/aircraft/N72405), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30122
- Aircraft time: 32,281 hours, 13,213 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Panel
- Part number: 90195002
- Part serial: 3249
- Condition: Faulty
- Location: Cockpit
- Part time: 11,498 hours, 4,068 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2011120900803

## Discrepancy

FAULT LIGHT AND APU DET INOP LIGHT ILLUMINATED ENGINE AND APU FIRE DETECTION SYSTEM WILL NOT TEST.  WHEEL WELL FIRE DETECTION SYSTEM TEST OK.  T/S PER FIM TASK 26-10-00-810-801 FOUND ALL LIGHTS ILLUMINATED ON FRONT OF ENG/ APU FIRE DETECTION CONTROL MODULE M 279.  REMOVED AND REPLACED MODULE REF AMM 26-10-01-400-801, OPS CHECK NORMAL.  ROTABLE PARTS CHANGE WAS INDICATED - TT # 1470582  SN OFF 03249 PANEL, CONTROL, OFF 29-2615-9-0001 3249 ON 29-2615-9-0001 0470.

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