# SDR 3EJA2026042800026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2026
- Submitted: April 22, 2026
- Operation: Air carrier
- Aircraft: [N739JS](https://openairdocs.org/aircraft/N739JS), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0045
- Aircraft time: 13,115 hours, 8,964 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Radio
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/3EJA2026042800026

## Discrepancy

AT APPROXIMATELY FL230 CLIMBING, ENROUTE TO FRG, EXPERIENCED TOTAL PASS OF COMMS WHERE BOTH SEATS AND BOTH RADIO 1 AND COULD NOT TRANSMIT AND/OR RECEIVE RADIO COMMUNICATIONS SQUELCH WAS INCREDIBLY LOUD AND EAR PIERCING. DID WHAT TROUBLESHOOTING THAT THEY COULD BEFORE SQUAWKING 7600. TURNED BACK TO SUA AND WAS ABLE TO ESTABLISH POOR COMMUNICATION WITH ATC, BUT ONLY FROM THE RIGHT SEAT. AN EMERGENCY WAS DECLARED. WENT INTO MX AND CND.

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