# SDR 2017FA0000640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2017
- Submitted: December 14, 2017
- Operation: General aviation
- Aircraft: [N404BA](https://openairdocs.org/aircraft/N404BA), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B5228
- Aircraft time: 2,397 hours, 5,313 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Flapper Valve
- Part number: 26134431
- Condition: Cracked
- Location: Heater
- Part time: 2,397 hours, 5,313 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2017FA0000640

## Discrepancy

THE HEATER FOR THE PASSENGERS WAS NOT WORKING. FOUND FLAPPER VALVE CRACKED IN HALF AT THE PASSENGER/COCKPIT DUCT.

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