# SDR CALA2026081418627

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2026
- Submitted: August 14, 2026
- Operation: Air carrier
- Aircraft: [N27261](https://openairdocs.org/aircraft/N27261), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 43464
- Aircraft time: 17,296 hours, 5,900 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 9640452012
- Part serial: 6649
- Condition: Faulted
- Location: Hf Comms
- Part time: 17,256 hours, 5,888 cycles
- 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/CALA2026081418627

## Discrepancy

HF RADIO TRANSMISSION PROBLEM BOTH HF 1 AND 2 WILL NOT TUNE OR TRANSMIT IN FLIGHT. WORKS FOR APPROX 30 MINUTES AND THEN FAILS IN FLIGHT.  TROUBLESHOT IAW EGC LP 9921076,  REPLACED RT HF TRANSCEIVER, OPS NORMAL.

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