# SDR ASAA2017100222101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2017
- Submitted: October 4, 2017
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 21,286 hours, 6,207 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Condition: Malfunctioned
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017100222101

## Discrepancy

WHEN NR 1 OR 2 HF IS SELECTED, BOTH ACTIVE & STANDBY DISPLAY INOPERATIVE AND WILL NOT TUNE.  SIDE TONE HEARD ON HF WHILE SELECTED.  ACFT GROUNDED.  VERIFIED DISCREPANCY. ACCOMPLISHED RADIO TUNING PANEL SYSTEM RESET IAW AMM 23-12-41.   SYSTEM CHECKED NORMAL IAW AMM 23-12-00-730-801,  VHF COMMUNICATION SYSTEM, SYSTEM TEST ACCOMPLISHED.

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