# SDR ASAA2019102961157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2019
- Submitted: October 30, 2019
- Operation: Air carrier
- Aircraft: [N434AS](https://openairdocs.org/aircraft/N434AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 61620
- Aircraft time: 14,298 hours, 4,557 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Electronic Unit
- Part number: 534011
- Part serial: 8766
- Condition: Failed
- Location: Remote
- Part time: 8,282 hours, 2,792 cycles
- 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/ASAA2019102961157

## Discrepancy

SATCOM DIALS AND GETS ANSWERED BUT WE CANNOT RECEIVE. NO DIALING OR ANY THING IS HEARD. GROUNDED - YES. REPLACED REU, OPS CHECK GOOD. IAW B737-900 AMM 23-51-01-000-801, 23-51-01-000-802.

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