# SDR HYIA769EA709

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2009
- Submitted: August 10, 2009
- Operation: Air carrier
- Aircraft: [N769EA](https://openairdocs.org/aircraft/N769EA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0303
- Aircraft time: 24,396 hours
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Master Switch
- Part number: CM358950
- Part serial: DATECODE0633
- Condition: Unserviceable
- Location: Lt Switch Panel
- Part time: 1,613 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/HYIA769EA709

## Discrepancy

CREW REPORTED AVIONICS MASTER SWITCH INOPERATIVE, WILL NOT SHUTOFF.   MX REMOVED AND REPLACED AVIONICS MASTER SWITCH.

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