# SDR ASAA2023021841985

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2023
- Submitted: February 20, 2023
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41732
- Aircraft time: 37,377 hours, 11,828 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023021841985

## Discrepancy

#2 HF DISPLAYS "FAIL FAIL" APPROX 5 SEC AFTER TUNING A FREQ. GROUNDED - YES. COULD NOT DUPLICATE FAIL FAIL MESSAGE PERFORMED B737-900 FIM 23-11 TASK 806 OPS CHECK GOOD. ETOPS GROUND VERIFICATION CELL CALL SUCCESSFUL.

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