# STC SA890SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Bendix Corporation Avionics Div, United States
- Description: Installation of Bendix FCS-810 automatic flight control system including manual electric pitch and optional flight director indicator.
- Status date: November 1, 1976
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8ADEFFB48AC596DE85256CC20058E976.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA890SO

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 421C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.