# SDR ASAA2023110546020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2023
- Submitted: November 7, 2023
- Operation: Air carrier
- Aircraft: [N478AS](https://openairdocs.org/aircraft/N478AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44105
- Aircraft time: 30,897 hours, 9,699 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- 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/ASAA2023110546020

## Discrepancy

DURING PRE-FLIGHT HF-2 "FAIL-FAIL ANNUNCIATED ON ACP. GROUNDED - YES. PERFORMED RESET AND OPS TEST PER AMM 23-11-21-860-006, OK FOR SERVICE.

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