# SDR CALA2013080890282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2013
- Submitted: August 8, 2013
- Operation: Air carrier
- Aircraft: N128UA
- Make and model: Boeing 747422
- Aircraft serial: 30023
- Aircraft time: 54,087 hours, 6,279 cycles
- Engine: Pwa PW4056
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Warning Message
- Condition: False Activation
- Location: Nr 2 Fire Loop
- Stage of operation: IN
- How discovered: V
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013080890282

## Discrepancy

NR 2 FIRE LOOP B STATUS MESSAGE.    OPS CHECKED NR 1 CARD GOOD.  UNABLE TO DUPLICATE, REPLACED PYLON LOOP TS681 PRECAUTIONARY, FIRE TEST PASSED.

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