# SDR ASAA2019112091378

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2019
- Submitted: November 21, 2019
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 41,498 hours, 12,464 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Warning Message
- Condition: False Activation
- Location: Hf 1
- 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/ASAA2019112091378

## Discrepancy

HF1 SHOWING FAIL ON RADIO HEAD DISPLAY. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 23-11 TASK 801. LRUS BITE TEST PASSED GROUND VERIFICATION SUCCESSFUL. HF1 & HF2 OPS NORMAL.

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