# STC SA3474SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Century automatic flight system Model AK981 consisting of a Century 2110/2130/2131 autopilot.
- Applied: April 25, 1988
- Status date: May 12, 1992
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A17EU](https://openairdocs.org/tcds/A17EU)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/e1/9ce1e13240b370b58edeaf9c146367413fd87048a85199e45f67faf423125f34
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DACB261C9A31B0CA85256CC2000A986B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3474SW-D

## ADs that name it (0)

None.

## Approved models (16)

- B-N Group Ltd. BN-2 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-2 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-20 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-21 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-26 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-27 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-3 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-6 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-8 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2A-9 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2B-20 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2B-21 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2B-26 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2B-27 ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))
- B-N Group Ltd. BN-2T ([TCDS A17EU](https://openairdocs.org/tcds/A17EU))

## 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.

tinted £tatu of amtrica Bepartment of transportation — Jpederal aoiation administration Supplemental HHgpe Certificate isKivmv&r' SA3474SW-D i/leaMut&vnA/.

Century Flight Systems, Inc.

P.M. 1195 P.O. Box 610 Mineral Wells, Texas 76067x<it^<^i^z4i^ ^<^ 23 Federal Air Al 7EU Britten-Norman BN-2, BN-2A, BN-2A-2, BN-2A-3, BN-2A-6, BN-2A-8, BN-2A-9, BN-2A-20, BN-2A-21 , BN-2A-26, BN-2A-27, BN-2B-20, BN-2B-21, BN-2B-26, BN-2B-27, BN-2T,BN-2T-2R Installation of Century Automatic Flight System Model AK981 consisting of a Century 2110/2130/2131 Autopilot per Bulletin No. 2038, dated 4-25-88 and Master Drawing List No. 87A1192, dated 4-25-88 (28 Volt System) and/or later FAA approved revision.

.: FAA/DAS Approved Supplement to Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 68S1019, dated 4-26-88. Also Century 2000 Autopilot Operator's Manual, P/N 68S1035, dated 7-15-86 and/or later FAA/DASapproved revision.

Compatibility of this modification with other previously approved modifications must be determined by the Installer.

-w- 4-25-88 5-25-88 5~12~92 Rev. 1 'tele M. Owsley Manager Airplane Certification Office (Title)

FAA FotM 8110-2 (10-68)

be used (o notify the appropriate FAA Regional Office of The FAA will reitiuc the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) _ (Address of transferee).

from (Name of grantor) (Print or type).

(Address of grantor) (Cify, 5UU, Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- May 12, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/9c/e1/9ce1e13240b370b58edeaf9c146367413fd87048a85199e45f67faf423125f34)

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