# SDR AMTA200700186

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2007
- Submitted: April 17, 2007
- Operation: Air carrier
- Aircraft: [N561TZ](https://openairdocs.org/aircraft/N561TZ), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 33526
- Engine: Rroyce RB211*
- System (JASC): [2397 · Communications System Wiring](https://openairdocs.org/jasc/2397)
- Part: Coupler
- Part number: 9640453011
- Part serial: FK51601772
- Condition: Damaged
- Location: Hf Radio
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200700186

## Discrepancy

LT HF TRANSMISSION AND RECEPTION WEAK AND INTERMITTENT.  REMOVED AND REPLACED LEFT HF COUPLER IAW MM 23-11-01-4, OPS CHECKS GOOD AT THIS TIME, TRANS AND RECEPTION LOUD AND CLEAR.  (K)

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