# SDR DALA2016120809737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2016
- Submitted: December 9, 2016
- Operation: Air carrier
- Aircraft: N901DA
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53381
- Aircraft time: 58,004 hours, 32,684 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Duct
- Condition: Damaged
- Location: Cargo Heater
- 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/DALA2016120809737

## Discrepancy

FLIGHT ATTENDANT REPORTED ELECTRICAL BURNING ODOR.  CIRCUIT BREAKER 1-12 AND 1-13, CARGO HEATER TRIPPED.  ODOR DISSIPATED.  FOUND ELEMENTS SHORTED ON THE HEATER DUCT.  REMOVED AND REPLACED CARGO HEATER DUCT ASSEMBLY PER MM.  OPERATION CHECKED GOOD.

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