# SDR DALA2021041602252

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2021
- Submitted: April 16, 2021
- Operation: Air carrier
- Aircraft: [N335NW](https://openairdocs.org/aircraft/N335NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 340
- Aircraft time: 80,129 hours, 35,988 cycles
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Vhf Comm
- Condition: Intermittent
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021041602252

## Discrepancy

SHIP 3235 - ATB - DUE TO ALL VHF COMMUNICATION BEING INTERMITTENT. OTHER AIRCRAFT FAULTS PRESENT INDICATING POSSIBLE ELECTRICAL ISSUE. CORRECTIVE ACTION: FOUND DC ESS BUS SUPPLY CONTACTOR (4PC) BAD AND REPLACED. ALSO REPLACED AC MAIN GENERATION CONTACTORS (11XU1 AND 11XU2) PRECAUTIONARY. AIRCRAFT RTS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.