# SDR COEA2012071701711

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2012
- Submitted: July 19, 2012
- Operation: Air carrier
- Aircraft: [N711FX](https://openairdocs.org/aircraft/N711FX), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B0433
- Aircraft time: 8,792 hours, 10,113 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Box
- Part number: 47790008
- Part serial: 9501004
- Condition: Defective
- Location: Fire Detection
- Part time: 8,792 hours, 10,113 cycles
- 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/COEA2012071701711

## Discrepancy

AIR TURNBACK FLT 100 FORM PDX:  ENGINE FIRE DETECTION SYSTEM SOUNDED THROUGH HEADSET AND SPEAKER, BUT NOT ON ANNUNCIATOR PANEL.  PILOT ELECTED TO RETURN TO PDX AND LANDED WITHOUT INCIDENT.  MAINTENANCE INSPECTED FIRE LOOP AND DETECTION SYSTEM.  REMOVED AND REPLACED FIRE DETECTION CONTROL BOX.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.