# SDR COZA20140720043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2014
- Submitted: July 21, 2014
- Operation: Air carrier
- Aircraft: [N737KA](https://openairdocs.org/aircraft/N737KA), registered now
- Make and model: Boeing 737-7BX
- Registry model: [Boeing 737-7BX](https://openairdocs.org/model/boeing-737-7bx) (OpenAirDocs)
- Aircraft serial: 30740
- Aircraft time: 27,086 hours, 16,649 cycles
- System (JASC): [2350 · Audio Integrating System](https://openairdocs.org/jasc/2350)
- Part: Audio Panel
- Part number: 5145164
- Part serial: 2762
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: TX
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COZA20140720043

## Discrepancy

ON THE GND, FIRST OBSERVERS AUDIO PANEL HAD NO LIGHTS IN THE MIKE SELECTOR BUTTONS.  REPLACED AUDIO PANEL & OPERATIONAL CHECKED NORMAL.

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