# SDR HALA0700475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2007
- Submitted: November 10, 2007
- Operation: Air carrier
- Aircraft: [N589HA](https://openairdocs.org/aircraft/N589HA), registered now
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 33422
- Aircraft time: 19,193 hours, 3,692 cycles
- System (JASC): [2397 · Communications System Wiring](https://openairdocs.org/jasc/2397)
- Part: Coupler
- Part number: 9640453011
- Part serial: FK51601086
- Condition: Damaged
- Location: Nr 2 Hf System
- 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/HALA0700475

## Discrepancy

AIR TURN BACK ETOPS SIGNIFICANT SYSTEM UNABLE TO TRANSMIT ON BOTH HF RADIOS.  REPLACED NR 2 HF COUPLER PER AMM 23-11-01-024-001 AND 23-11-01-424-008.

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