# STC SA3310SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system AK804 consisting of Century41 autopilot or AK804FD consisting of Century 41 autopilot flight director.
- Status date: September 21, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7CDD4191403C5B0E85256CC2000A96B4.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3310SW-D

## ADs that name it (0)

None.

## Approved models (4)

- Raytheon Aircraft Company S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company V35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company V35A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Raytheon Aircraft Company V35B ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

---
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.