# SDR ASAA2017041720474

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2017
- Submitted: April 19, 2017
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 32,781 hours, 9,823 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Transceiver
- Part number: 8222835002
- Part serial: 40N8X2
- Condition: Malfunctioned
- Location: Satcoms
- Part time: 10,907 hours, 3,177 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/ASAA2017041720474

## Discrepancy

UNABLE TO RECEIVE VOICE COMMS ON SAT 1 OR 2. CALLING PARTY COULD HEAR US, BUT WE COULDN'T HEAR THEM.  ACFT GROUNDED. UNABLE TO DUPLICATE.  REMOVED, REPLACED, AND TESTED SATCOM TRANSCEIVER IAW AMM 23-15-00. TEST PASSED. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

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