# SDR ASAA2019052429477

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2019
- Submitted: May 28, 2019
- Operation: Air carrier
- Aircraft: [N494AS](https://openairdocs.org/aircraft/N494AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41729
- Aircraft time: 13,228 hours, 4,278 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Condition: Malfunctioned
- Location: Hf Comm
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019052429477

## Discrepancy

HF 2 FAIL. GROUNDED - YES. REF HF COMM SYSTEM BITE FIM 23-11 TASK 801, HF SYSTEM AND OPS TEST AMM 23-11-00/501. ETOPS GROUND VERIFICATION GOOD, HF 2, OPS TEST GOOD.

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