# SDR COEA2024111408880

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2024
- Submitted: November 14, 2024
- Operation: Air carrier
- Aircraft: [N880FE](https://openairdocs.org/aircraft/N880FE), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 0215
- Aircraft time: 14,220 hours, 21,735 cycles
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Transponder
- Condition: Malfunctioned
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COEA2024111408880

## Discrepancy

FLT 8812 TAKEOFF OUT OF PHX  AIR TURNBACK/DISCREPANCY: NO MODE C ON BOTH TRANSPONDERS IN FLIGHT. AIRCRAFT WAS RETURNED TO PHX. NO EMERGENCY WAS DECLARED. LANDED WITHOUT FURTHER INCIDENT. CORRECTIVE ACTION: AFTER TROUBLESHOOTING, MAINTENANCE COULD NOT DUPLICATE, NO DEFECTS NOTED.

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