# SDR DALA2021050302523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2021
- Submitted: May 4, 2021
- Operation: Air carrier
- Aircraft: [N409DX](https://openairdocs.org/aircraft/N409DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 1983
- Aircraft time: 52 hours, 9 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transmitter
- Condition: Inoperative
- Location: Nr 1 Hf
- Stage of operation: CR
- 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/DALA2021050302523

## Discrepancy

SHIP 3409 -ATB- DUE TO BOTH HF RADIOS ARE UNABLE TO TRANSMIT. CORRECTIVE ACTION: REPLACED NUMBER 1 AND 2 HF COUPLER. (5676424)

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