# SDR DL764020314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2002
- Submitted: April 3, 2002
- Operation: Air carrier
- Aircraft: [N843MH](https://openairdocs.org/aircraft/N843MH), registered now
- Make and model: Boeing 767432ER
- Aircraft serial: 29716
- Aircraft time: 276 hours, 118 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 8220987003
- Part serial: 2866
- Condition: Defective
- Location: E/E Bay
- 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/DL764020314

## Discrepancy

AIRBORNE UNABLE XMIT ON EITHER HF.  RADIO. HAD A VALID OK ON THE GROUND BEFORE DEPARTURE.  TRIED NEW HF XCVRS, NO HELP.  REPLACED LEFT AND RIGHT HF COUPLERS.  BOTH SYSTEMS TEST GOOD.

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