# SDR ASAA2022030637636

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2022
- Submitted: March 9, 2022
- Operation: Air carrier
- Aircraft: [N469AS](https://openairdocs.org/aircraft/N469AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41702
- Aircraft time: 28,442 hours, 9,100 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022030637636

## Discrepancy

COULD NOT TRANSMIT ON SAT RADIO. WHEN MAKING CALL TO DISPATCH, I COULD HEAR THEM ANSWER, BUT THEY COULD NOT HEAR ME.THIS WAS THE CASE FOR BOTH SAT #1 AND SAT #2. TRIED 4 TIMES ENROUTE AND THEN AGAIN GOING INTO KSAN. SAME RESULT. GROUNDED - YES. PERFORMED OPS TEST OF SATCOM ON BOTH CAPT & FO SIDE. REF B737-900 AMM 23-15-00-730-801. OPS TEST GOOD.

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