# STC SA3379SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Mitchell automatic flight system AK878 consisting of Century 41autopilot or AK878 FD consisting of Century 41 flight director autopilot.
- Status date: August 24, 1983
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BA0890F0B58EBFBE85256CC2000A9773.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3379SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Raytheon Aircraft Company B90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company C90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company E90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))

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