# SDR DALA2020083102881

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2020
- Submitted: August 31, 2020
- Operation: Air carrier
- Aircraft: [N822DX](https://openairdocs.org/aircraft/N822DX), registered now
- Make and model: Boeing 757-26D
- Registry model: [Boeing 757-26D](https://openairdocs.org/model/boeing-757-26d) (OpenAirDocs)
- Aircraft serial: 33966
- Aircraft time: 42,952 hours, 20,636 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Condition: Malfunctioned
- Location: Hf Comms
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020083102881

## Discrepancy

THE CREW PERFORMED AN AIR TURN BACK FOLLOWING DUE TO THE LOSS OF BOTH THE LT & RT HF RECEIVERS. SELCAL CHECK ALSO FAILED. CORRECTIVE ACTION: MAINTENANCE REPLACED BOTH THE LT & RT HF TRANSCEIVERS. IT WAS NOTED THAT BOTH HF SENSE CONTROLS WERE TURNED DOWN. TURNED CONTROLS UP AND THE OPERATIONAL CHECKS WERE GOOD.

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