# SDR N5C2011F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2011
- Submitted: June 10, 2011
- Operation: Air carrier
- Aircraft: [N27478](https://openairdocs.org/aircraft/N27478), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317852026
- Engine: Lyc TIO540J2BD
- System (JASC): [2350 · Audio Integrating System](https://openairdocs.org/jasc/2350)
- Part: Audio Panel
- Part number: 011004110
- Part serial: 962160723
- Condition: Failed
- Location: Cockpit
- Part time: 1,149 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N5C2011F00001

## Discrepancy

PILOT LOST VHF COMMUNICATIONS.  AFTER FAILED ATTEMPTS TO CONTACT ATC THE PILOT THEN ENTERED "7600" INTO THE TRANSPONDER.  THE ACFT PROCEEDED AND WAS GIVEN GREEN LIGHT TO LAND WITHOUT INCIDENT.  THE AUDIO PANEL WAS REMOVED BY AVIONICS AND FOUND TO BE DEFECTIVE, NO VISIBLE EXTERNAL DAMAGE WAS OBSERVED.  THE AUDIO PANEL HAS BEEN SHIPPED FOR REPAIR OR REPLACEMENT.

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