# SDR ASAA2023041042838

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2023
- Submitted: April 14, 2023
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 35,353 hours, 11,176 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Panel
- Part number: G716401
- Part serial: 444
- Condition: Stuck
- Location: Cockpit
- Part time: 27,097 hours, 8,484 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023041042838

## Discrepancy

HF/SAT XFRD BUTTON #1 STUCK IN DOWN POSITION. GROUNDED - YES. REMOVED AND REPLACED HF/SAT TRANSFER PANEL IAW B737-900 AMM 23-15-00-400-804.

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