# SDR CALA2013122393882

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2013
- Submitted: December 24, 2013
- Operation: Air carrier
- Aircraft: [N222UA](https://openairdocs.org/aircraft/N222UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30553
- Aircraft time: 53,404 hours, 6,403 cycles
- Engine: Pwa PW4090
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Rfu
- Part number: 6228849100
- Part serial: 124
- Condition: Faulty
- Location: Satcom
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013122393882

## Discrepancy

SATCOM SYS PASSES FIM TEST BUT SHOWS A RFU INTERNAL FAULT.  REPLACED RFU, CHECKED OKAY.

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