# STC SA3018SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK442 consisting of Century III autopilot with optional command/automatic electronic pitch trim system, radio coupler and glide slope coupler.
- Applied: August 19, 1974
- Status date: August 1, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10)
- Certificate PDF: https://openairdocs.org/files/sha256/e3/01/e30177f50b5bc2e4a959dfd9c0719c75b2aa9194b7b811701a4cf1884a704c53
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ACC94FCC04BB16AC85256CC2000A92BD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3018SW-D

## ADs that name it (0)

None.

## Approved models (7)

- Cessna Aircraft Company 310N ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310P ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310Q ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310R ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company T310P ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company T310Q ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company T310R ([TCDS 3A10](https://openairdocs.org/tcds/3A10))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

department of Transportation i -fetal Situation administration Supplemental TCpe Certificate <_slcai*"*&*m&'- SA3018SW-D Century Flight Systems, Inc P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 Civil Air 3A10 Cessna 310N, 310P, 310Q, 310R, T310P, T310Q and T310R rtJ&& :

Installation of Mltchell Automatic Flight System Model AK.442 consisting of Century III Autopilot with Optional Command/ Automatic Electronic Pitch Trim System, Radio Coupler and Glide Slope Coupler according to Bulletin No. 564, Revision 2, dated 10-17-75 and Master Drawing List No. 87A734, Revision B, dated 10-17-75.

This modification is also approved for the following applicable models when modified in accordance with STC SA2082WE; 310N, 310P, 310Q, T310P, T310Q and T310R. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S197-1, dated 8-30-74, Revision 1, dated 5-9-75, Placard, P/N 13A660 is required for Command/Automatic Electronic Pitch Trim Installation.

ffi*t?dli3$*f% ??iiijiSiK/fth °ther P'«vi——ly approved modification, ^f^fA-^C^f^ififa^e,Jiri(ttnfAji^i^>i'f/in^'^£a^(4 ^uAtcA* t&- t&e, /ttAtb fi-r-a/iSvr<*iia/jlfm(t/rt-maj,n <«-^fi£<'/^*«X'<^i*i»~ &&44feMtAnea&t/s 4nf.

8-19-74 8-30-74 5-9-75; 10-28-75; 8-1-84, Revision 3 P. Watson ff Manager, Aircraft Certification Division Southwest Region (TaU)

T/in certificate may be tram/erred in aitontanre tvitfi FAR 21.47.

FAAFou.l1IO-](1o-AB)

INSTRUCTIONS: Tha transfer endorsement below may ba uaad to notify the appropriate FAA Regional Office of tha transfer of tha Supplemental Type Certificate.

The FAA will reissue the certificate in the najaa of tha transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Numbar_ to (Same of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number £ street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- August 1, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e3/01/e30177f50b5bc2e4a959dfd9c0719c75b2aa9194b7b811701a4cf1884a704c53)

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