# SDR AMTA200800027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2008
- Submitted: February 22, 2008
- Operation: Air carrier
- Aircraft: [N520AT](https://openairdocs.org/aircraft/N520AT), registered now
- Make and model: Boeing 757-23N
- Registry model: [Boeing 757-23N](https://openairdocs.org/model/boeing-757-23n) (OpenAirDocs)
- Aircraft serial: 27976
- Engine: Rroyce RB211535E4
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 9641453011
- Part serial: 0026
- Condition: Defective
- Location: Hf Comm
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200800027

## Discrepancy

LT HF WILL NOT TRANSMITT AT ALL STATIONS.  REMOVED AND REPLACED HF COUPLER LT SIDE.  RADIO CHECK, OPS GOOD.  (K)

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