# SDR ASAA2019031328594

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2019
- Submitted: March 14, 2019
- Operation: Air carrier
- Aircraft: [N487AS](https://openairdocs.org/aircraft/N487AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44108
- Aircraft time: 13,687 hours, 4,423 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- 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/ASAA2019031328594

## Discrepancy

HF 2 RADIO FAIL MESSAGE APPEARS IN FREQ DISP WINDOW ABOUT 30 SEC AFTER TUNING A NEW FREQ. GROUNDED - YES. RAN HF BITE TEST PER FIM 23-11 TASK 801, NO FAULTS RECORDED, HF 2 OPS NML AFTER FIM TASK BITE. ETOPS SIGNIFICANT SYSTEM, GROUND VERIFICATION SUCCESSFUL.

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