# SDR ASAA2016052316830

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2016
- Submitted: May 25, 2016
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 10,267 hours, 3,354 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Satcom
- Condition: Malfunctioned
- 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/ASAA2016052316830

## Discrepancy

SATCOM INOPERATIVE, CAN CALL OUT AND RECEIVE CALLS.  HOWEVER, RECEIVING STATION CANNOT HEAR OUR OUTGOING TRANSMISSIONS.  THERE IS AN ECHO WHEN TRANSMITTING. CONDITION OCCURS ON BOTH SAT 1 AND SAT 2.  ACFT GROUNDED. COULD NOT DUPLICATE, NO HISTORY 30 DAYS. ACCOMPLISHED SATCOM SYSTEM 1 & 2 VOICE TEST IAW AMM 23-15-00-730-801, TEST PASSED.

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