# SDR ANCF2012121200141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2012
- Submitted: January 2, 2013
- Operation: Air carrier
- Aircraft: [N948AC](https://openairdocs.org/aircraft/N948AC), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 0948
- Aircraft time: 21,333 hours, 3,723 cycles
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Amu
- Part number: AMU4031LA140204
- Part serial: 40311818
- Condition: Malfunctioned
- Location: Vhf Comm
- Stage of operation: DE
- How discovered: O
- Nature of condition: G
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF2012121200141

## Discrepancy

AFTER TOD. VHF1 FAIL THEN VHF2 THEN VHF3 - TOTAL VHF COMMUNICATION FAILURE 10 MIN.  THE AMU WAS REPLACED AS PER TASK 23-51-34-000-801A TASK 23-51-34-000-801A BITE TEST IAW TASK 23-51-00-740-801A.

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