# SDR DJFA2005181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2005
- Submitted: January 4, 2006
- Operation: Air carrier
- Aircraft: [N709TA](https://openairdocs.org/aircraft/N709TA), registered now
- Make and model: Beech 400A
- Registry model: [Beech 400A](https://openairdocs.org/model/hawker-beechcraft-400a) (OpenAirDocs)
- Aircraft serial: RK180
- Aircraft time: 6,373 hours, 5,105 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Odor
- Condition: Detected
- Location: Cockpit
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DJFA2005181

## Discrepancy

DURING T/O A HEAVY ODOR SIMILAR TO MELTING PLASTIC COMING FROM PAX COMPT AT TIME OF DISCOVERY, TEMP CONTROL WAS SET ON AUTO, TEMP KNOB IN HOT POSITION.  CREW DONNED THEIR OXYGEN MASKS & TURNED OFF ALL CABIN HEAT.  APPROX 10 MINS ODOR DISSIPATED.  A NORMAL LANDING.  MX INSPECTED CABIN TEMP CONTROL VALVES FOR PROPER OPERATION & LEAKS, AND CHECKED TEMP SENSOR RESISTANCE.  NO DEFECTS NOTED.  AFTER CLEANING CABIN TEMP SENSOR, AND OPERATIONALLY CHECKING TEMP CONTROLS, AFT HEAT VENT WAS FOUND TO BE VERY HOT.  BEECHCRAFT SB 21-3289 FOR REDUCING HEAT VENT TEMPERATURE INSTALLED USING KIT 128-5043-1.  OPS CHECKS AFTER KIT INSTALLATION WERE GOOD.  A/C WAS RETURNED TO SERVICE.

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