# SDR O9IA544LM100613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2013
- Submitted: October 9, 2013
- Operation: Air carrier
- Aircraft: [N544LM](https://openairdocs.org/aircraft/N544LM), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 500
- Aircraft time: 13,958 hours, 10,046 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Duct
- Condition: Leaking
- Location: Wing Anti Ice
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O9IA544LM100613

## Discrepancy

WHEN WING AND STAB HEAT TURNED ON,  THERE IS A BURNING ODOR IN CABIN AND COCKPIT.  GROUND RUNS/CHECKS WERE UNABLE TO IDENTIFY PROBLEM.  CHECK FLIGHT PERFORMED.   NO FINDINGS.  SECOND IDENTIFIED VERY LIGHT SMOKE FROM LT WING/STAB HEAT PIPE.  PIPE HAD BEEN REWRAPPED WITH INSULATION AND A HEAT TAPE UTILIZED TO KEEP IN PLACE.  TAPE ADHESIVE WAS GETTING HOT AND EMITTING SMOKE AND FUMES.  REWRAPPED DUCT WITHOUT TAPE.  SUBSEQUENT FLIGHT CHECKS REVEALED NO DISCREPANCY.

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