# SDR ASAA2018100826397

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2018
- Submitted: October 9, 2018
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 39,872 hours, 12,152 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018100826397

## Discrepancy

NR 1 HF FAIL INDICATED IN RTP. GROUNDED - YES. ACCOMPLISHED HF SYSTEM BITE REF FIM 23-11 TASK 801. BITE SHOWS LRU PASS AND FAIL INDICATION REMOVED. CREW VERIFIED NR 1 HF NORMAL OPERATION. GROUND VERIFICATION ACCOMPLISHED.

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