# SDR UALA2012011300282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2012
- Submitted: January 24, 2012
- Operation: Air carrier
- Aircraft: [N793UA](https://openairdocs.org/aircraft/N793UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26946
- Aircraft time: 64,100 hours, 9,258 cycles
- Engine: Pwa PW40903
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Switch
- Condition: Failed
- Location: Fire Arm
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012011300282

## Discrepancy

CARGO FIRE AFT ARM SWITCH NO LIGHT TEST.  FIRE TEST PASSES OKAY.  REPLACED SWITCH MODULE & RESET ACFT POWER & CHECKED NORMAL.

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