# SDR FDEA201306261403

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2013
- Submitted: June 26, 2013
- Operation: Air carrier
- Aircraft: N373FE
- Make and model: Doug MD-10-10F
- Registry model: [Doug MD-10-10F](https://openairdocs.org/model/mcdonnell-douglas-md-10-10f) (OpenAirDocs)
- Aircraft serial: 46611
- Aircraft time: 88,886 hours, 37,358 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Cargo
- 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/FDEA201306261403

## Discrepancy

CLIMBING THROUGH 18000'  TRI-TONE WARNING ANNUNCIATING A "CARGO FIRE LOWER"  OCCURED FOR APPROX 5 SECONDS (2 CYCLES OF THE TRI-TONE).  HAPPENED FOUR TIMES.  INITIATED AN EMERGENCY RETURN TO AIRPORT,  DECLARING AN EMERGENCY.  THERE WERE NO ADDITIONAL FIRE WARNINGS WHILE ENROUTE TO AIRPORT. NO SMOKE/FUMES EXPERIENCED. LANDING UNEVENTFUL.  WARNING WAS FOR THE FWD CARGO BAY.   REPLACED ALL FOUR SMOKE DETECTORS IN LWR/FWD CARGO COMPARTMENT.  CARGO SMOKE TEST GOOD IAW MM 26-14-01-5 REF MM 26-14-01-4

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