# SDR ASAA2019092530821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2019
- Submitted: September 26, 2019
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 50,013 hours, 14,961 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Condition: Malfunctioned
- Location: Hf Comm
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019092530821

## Discrepancy

HF#1 RADIO DOES NOT TRANSMIT. GROUNDED - YES. PERFORMED FIM 23-11 TASK 806, USED HF FREQ 50547. NO FAULTS NOTED.

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