# SDR CALA2013081390415

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2013
- Submitted: August 14, 2013
- Operation: Air carrier
- Aircraft: [N780UA](https://openairdocs.org/aircraft/N780UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26944
- Aircraft time: 69,824 hours, 12,194 cycles
- Engine: Pwa PW4077
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Satcom
- Part number: 8220314102
- Part serial: 36
- Condition: Faulty
- Location: Left
- 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/CALA2013081390415

## Discrepancy

SATCOM VOICE VOICE PORTION OF SATCOM FAILS.  ADVISORY MSG-2360041 INACTV ER INTER.    NOTE THIS IS 3RD STEP IN FIM 23-15 TASK 803, HPA FOR HGA AND RADIO FREQ UNIT HAVE BEEN REPLACED.  REPLACED SDU.  ACP'D SYSTEM TEST AND VOICE CALL TO TOMC, BOTH CK OK.

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