# SDR ASAA2022122341230

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2022
- Submitted: December 27, 2022
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 50,497 hours, 14,807 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Control Panel
- Part number: G716401
- Part serial: 367
- Condition: Faulted
- Location: Flight Deck
- Part time: 20,609 hours, 6,007 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022122341230

## Discrepancy

NUMBER 2 HF/SAT XFER SWITCH WILL NOT ENGAGE WHEN PUSHING. GROUNDED - YES. REMOVED & REPLACED HF/SAT PANEL PERFORMED SYSTEM TEST IAW B737-800 AMM TASK 23-15-00-730-801. OPS CK NORMAL.

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