# SDR ASAA2023030842261

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2023
- Submitted: March 10, 2023
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 54,644 hours, 16,302 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023030842261

## Discrepancy

CRZ ALT. HF1 CHANNELIZED. FREQ CHANGE AND CHANNELIZED. HF1 DOES NOT TRANSMIT ON CAPT OR FO SIDE. HF1 RECEIVES 5X5 AND GOOD SELCAL. GROUNDED - YES. PERFORMED GOOD HF #1 BITE PROCEDURE PER B737-800 FIM 23-11 TASK 801. PERFORMED FIM 23-11 TASK 806 AND HF #1 RECEIVED AND TRANSMITTED ON BOTH CAPT'S AND F/O'S SIDE. NO HISTORY PAST 30 DAYS.

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