# SDR ASAA2022071239049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2022
- Submitted: July 14, 2022
- Operation: Air carrier
- Aircraft: [N530AS](https://openairdocs.org/aircraft/N530AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36578
- Aircraft time: 43,463 hours, 12,677 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Part number: UNKNOWN
- Condition: Intermittent
- Location: Unknown
- 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/ASAA2022071239049

## Discrepancy

UNABLE TO TRANSMIT ON HF1. SELCAL CHECK WAS GOOD, AND ABLE TO HEAR OTHERS ON HF1, BUT CANNOT TRANSMIT. GROUNDED - YES. PERFORMED HF1 SYSTEM BITE PROCEDURE IAW B737-800 FIM 23-11-801 BITE TEST NORMAL. NO FAULTS FOUND. ABLE TO TRANSMIT AND RECEIVE NORMALLY.

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