# SDR ASAA2018120627236

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2018
- Submitted: December 7, 2018
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 40,735 hours, 12,258 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Satcom
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018120627236

## Discrepancy

SATCOM PROMPT MISSING FROM MCDU. GROUNDED - YES. PERFORMED QRH PROCEDURE AND SATCOM RETURNED TO NORMAL.

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