# SDR HNAA0800053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2008
- Submitted: February 3, 2008
- Operation: Air carrier
- Aircraft: N826EX
- Make and model: Dhav DHC8102
- Aircraft serial: 389
- Aircraft time: 30,918 hours, 33,736 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Switch
- Part number: 6500757
- Condition: Failed
- Location: Cockpit
- Part time: 30,918 hours, 33,736 cycles
- Stage of operation: UK
- 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/HNAA0800053

## Discrepancy

WHEN THE COCKPIT WARNING AND CAUTION LIGHTS WERE CHECKED, IT WAS FOUND THAT THE MASTER WARNING SWITCH/LIGHT WAS INOPERATIVE.  THE SWITCH MODULE WAS REPLACED BY MAINTENANCE, OPS CHECKED GOOD AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

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