# SDR ASAA2016071317363

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2016
- Submitted: July 15, 2016
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 10,855 hours, 3,551 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Transceiver
- Part number: 8222835002
- Part serial: 40FP4G
- Condition: Failed
- Location: Satcom
- Part time: 10,869 hours, 3,555 cycles
- Stage of operation: CR
- 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/ASAA2016071317363

## Discrepancy

DURING FLIGHT NOTICED SATCOM LOCKUP. AFTER FOLLOWING QRH RESET PROCEDURE, THE SAT PROMPT FAILED TO APPEAR.  ACFT GROUNDED.  REMOVED & REPLACED SATCOM TRANSCEIVER.  OPS CHECKED NORMAL, GROUND VERIFICATION SUCCESSFUL.

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