# SDR ASAA2018030823787

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2018
- Submitted: March 12, 2018
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 15,396 hours, 5,035 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Transceiver
- Part number: 8222835002
- Part serial: 44T0LR
- Condition: Failed
- Location: Satcom
- Part time: 9,786 hours, 3,242 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/ASAA2018030823787

## Discrepancy

SATCOM LOCKED UP ON POWER TRANSFER. WOULD NOT COME BACK WITH QRH PROCEDURE. GROUNDED - YES. FOUND RED POWER LIGHT ILLUMINATED ON FRONT OF SATCOM IRIDIUM TRANSCEIVER. C/B RESET NO HELP. REMOVED AND REPLACED SATCOM IRIDIUM TRANSCEIVER IAW AMM 23-15-00.  PERFORMED SATCOM COMMUNICATION SYSTEM ADJUSTMENT AND TEST. OPS NORMAL.

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