# STC SA1686GL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: ElectroSonics Div of AiRadio Corporation, United States
- Description: Installation of a Bendix/King EFS-50 electronic flight instrument system(EFIS) comprised of 2 ED-551A electronic flight displays, P/N 066-03137-3300; one SG-465 symbol generator, P/N 066-04021-1107; one CP-467 display controller, P/N 71-00439-3200; one KA-163A adapter, P/N 071-01303-0001; and a Bendix/King weather radar comprised of one RS-181A weather radar RTA, P/N 071-01315-0030 and one IN-182A weather radar indicator, P/N 066-03084-0031.
- Status date: December 15, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A27CE](https://openairdocs.org/tcds/A27CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/605E33AC1C2248D285256CC10083CECC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1686GL

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 501 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))
- The Cessna Aircraft Company 551 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))

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