# SDR O2JA201704270001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2017
- Submitted: April 27, 2017
- Operation: Air carrier
- Aircraft: [N991AL](https://openairdocs.org/aircraft/N991AL), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 23216
- Aircraft time: 18,297 hours, 12,731 cycles
- System (JASC): [3455 · Automatic Direction Finder (ADF) System](https://openairdocs.org/jasc/3455)
- Part: Adf
- Part number: 7926275002
- Part serial: 1025
- Condition: Burned Out
- Stage of operation: AA
- How discovered: O
- Nature of condition: A
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2JA201704270001

## Discrepancy

ADF BECAME VERY HOT TO TOUCH DURING FLIGHT. THE UNIT WAS TURNED OFF, A FEW MINUTES LATER FLAMES APPEARED BETWEEN ADF AND HF RADIO.

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