# SDR ASAA2022042438120

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2022
- Submitted: April 27, 2022
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 50,190 hours, 14,902 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Unknown
- Stage of operation: NR
- 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/ASAA2022042438120

## Discrepancy

FVR UNSAT #2 HF INOP. GROUNDED - YES. ACCOMPLISHED HF COMM SYS BITE CHECK REF B737-800 FIM 23-11 TASK 801. NO DEFECTS NOTED. ACCOMPLISHED HF COMM SYS RECEIVE/ TRANSMIT PROBLEM FIM 23-11 TASK 806. NO DEFECTS NOTED. CALLED SFO ARINIC AUDIO QUALITY 3/4 ON GND.

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