# SDR WRLA20120823555

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2012
- Submitted: August 27, 2012
- Operation: Air carrier
- Aircraft: N740WA
- Make and model: Boeing 747-4H6
- Registry model: [Boeing 747-4H6](https://openairdocs.org/model/boeing-747-4h6) (OpenAirDocs)
- Aircraft serial: 25700
- Aircraft time: 75,906 hours, 10,063 cycles
- Engine: Pwa PW4056
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: Contaminated
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRLA20120823555

## Discrepancy

RTO DUE TO FIRE INDICATION ON MAIN DECK.  MX FOUND CONDENSATION ON DETECTOR.  REMOVED CONDENSATION, ALL CHECKS OK.

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