# SDR ASAA2021060735065

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2021
- Submitted: June 10, 2021
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 34,348 hours, 9,879 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Condition: Faulted
- Location: Hf Comms
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021060735065

## Discrepancy

HF #1 AND #2 WILL NOT TRANSMIT NOT RECEIVE. GROUNDED - YES. FOUND NO POWER TO HF TRANSCEIVER REST BY FIM AND PERFORMED BITE PROCEDURE. REF B737-800 FIM 23-11 TASK 801 AND OPERATIONAL CHECK REF B737-800 AMM 23-11-00-710-801 HF 1 AND HF 2 OPERATIONAL TEST NORMAL.

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