# STC SA3198SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK681 consisting of Century IIB autopilot with optional radio coupler.
- Applied: March 14, 1977
- Status date: March 28, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A13](https://openairdocs.org/tcds/1A13)
- Certificate PDF: https://openairdocs.org/files/sha256/fb/e2/fbe206b7fd3d02726f6a56bdf99b2037d2b27a4dfc7fb74279697a791ef765bd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1653AF64C9042ACC85256CC2000A9519.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3198SW-D

## ADs that name it (0)

None.

## Approved models (3)

- REVO Incorporated Lake LA-4 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4-200 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4A ([TCDS 1A13](https://openairdocs.org/tcds/1A13))

## 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.

Bepartment of transportation —federal 2toiation administration Supplemental 'Cgpe Certificate tsteoMta&o-nA'.

Cfot&vrva/ iJ „ Century Flight Systems, Inc.

P.M. 1195 P . 0 . Box 610 Mineral Wells, TX 76067 ^5^.^^'a!*!'*^i^ .£foJa<</tW0T^

•. , . - Consolidated Aeronautics LA-4, LA-4A, LA-4-200 n&e< •' Installation of Mitchell Automatic Flight System Model AK681 corals ting of Century IIB Autopilot with Optional Radio Coupler according to Bulletin No. 810 dated 3-10-77 and Master Drawing List No. 87A914 dated 3-10-77. or later FAA approved revision.

Also eligible on Amphibian alrccaft.

FAA/DAS Approved Airplane Flight Manual Supplement P/N 68S530 dated 3-25-77 is required.

°ther Previously approved modifications 'U< _ fJa£f<t 3— 25" 77 «* ~*AM*< : 3_28-84 Revision 1 tr arrtfru/cff Don P. WatSOn (Signature) Manager, Aircraft Certification Division Southwest Region (Title)

FAAFo«M 8110-2(10-68)

.NSTRUCTIONS: The transfer endorsement below may be used to notify the appropriate FAA Kegiona, Office of the transfer of iht* Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it .o him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee)_ (Address of transferee). {MumtfrmistTttt) from (Name of grantor) (Print or type).

(Address of grantor) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fb/e2/fbe206b7fd3d02726f6a56bdf99b2037d2b27a4dfc7fb74279697a791ef765bd)

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