# SDR ASAA2018081375711

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2018
- Submitted: August 13, 2018
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 41,941 hours, 12,386 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018081375711

## Discrepancy

NR 1 HF DOES NOT TRANSMIT FROM EITHER PANEL. NO SIDE TONE, NO FREQUENCY CHANGE TONE.  ACFT GROUNDED. AIR TURNBACK.  RESET THE SYSTEM, NR 1 HF CHECKED GOOD IAW AMM 23-11-00-710-801.

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