# SDR P5CA2015062000052

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2015
- Submitted: June 23, 2015
- Operation: Air carrier
- Aircraft: [N452PA](https://openairdocs.org/aircraft/N452PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30810
- Aircraft time: 62,918 hours, 10,376 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: False Activation
- Location: Cargo Bay
- 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/P5CA2015062000052

## Discrepancy

MAIN DECK FIRE WARNING. QRH PROCEDURE AND ALL CHECK LISTS ACCOMPLISHED. PERFORMED EMERGENCY RETURN.  AIRCRAFT LANDED NORMALLY.  VISUAL INSPECTION OF MAIN DECK CARGO COMPARTMENT.  NO EVIDENCE OF FIRE & SMOKE.  AS PRECAUTION, REPLACED NR 8 LOOP A AND B SMOKE DETECTORS IAW AMM 26-14-01 AND AFOLTS WARNING CARD IAW AMM 26-10-01.  ALL SYSTEMS OPERATE NORMALLY.

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