# SDR AALA202012039014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2020
- Submitted: December 3, 2020
- Operation: Air carrier
- Aircraft: [N755US](https://openairdocs.org/aircraft/N755US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1331
- Aircraft time: 48,118 hours, 33,948 cycles
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Amu
- Part number: 2790CB06
- Part serial: 182
- Condition: Inoperative
- Location: Vhf Comms
- Part time: 82,826 hours, 38,589 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/AALA202012039014

## Discrepancy

AIRCRAFT WAS GROUNDED.  VHF1 AND 2 HAVE EXCESSIVE BLEED OVER FROM ALL OTHER UNSELECTED RADIOS.  DIFFICULT TO HEAR CONTROLLERS INSTRUCTIONS.  REMOVED AND REPLACED AUDIO MANAGEMENT UNIT, PER AMM 23-51-34.

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