# SDR NAFA20010004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2001
- Submitted: November 30, 2001
- Operation: Air carrier
- Aircraft: [N7780B](https://openairdocs.org/aircraft/N7780B), registered now
- Make and model: Doug DC-6A
- Registry model: [Doug DC-6A](https://openairdocs.org/model/douglas-dc-6a) (OpenAirDocs)
- Aircraft serial: 45372
- Aircraft time: 21,589 hours
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Heater
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: TX
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NAFA20010004

## Discrepancy

STRONG EXHAUST ODOR IN COCKPIT, CO² DETECTOR TURNING BLACK.  INSPECTED CABIN HEATER, NO DEFECTS NOTED.  REPLACED CO² DETECTOR, AND OPERATED CABIN HEATER FOR 1 HOUR, NO EXHAUST ODOR NOTED.  CO² DETECTOR REMAINED CLEAR, OK FOR SERVICE.

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