# SDR ASAA2019061069638

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2019
- Submitted: June 10, 2019
- Operation: Air carrier
- Aircraft: [N533AS](https://openairdocs.org/aircraft/N533AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35201
- Aircraft time: 33,034 hours, 9,619 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Card
- Condition: Unlocked
- Location: Satcom
- 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/ASAA2019061069638

## Discrepancy

SAT LOG MODEM STATUS LBT-2 SHOW NOT READY SIGNAL 0 PERFORMED TEST CALL TO DISPATCH ON SAT 2, LBT-1 PICKED UP THE CALL LBT-2 ALTERNATES BETWEEN FAIL AND NOT READY. GROUNDED - YES. VERIFIED T/S PREVIOUSLY DONE. SATCOM TRANSCEIVER HAS A AMBER LBT-2 ANN. ON. SHOULD BE GREEN. OPENED CIM MODULE AND FOUND #2 SIM CARD NOT IN LOCKED POSITION. SECURED CARD AND NOW LBT-2 IS GREEN AND SATCOM INFO ON MCDU SHOWS GOOD. PERFORMED SATCOM COMM. SYSTEM TEST REF B737-800 AMM 23-15-00. OPS NML. GROUND VERIFICATION TEST GOOD.

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