# STC SA1478SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK345 consisting of Century III Autopilot with Optional Automatic Pitch Trim System, Radio Coupler and Glide Slope Coupler
- Applied: March 30, 1972
- Status date: July 10, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6CE](https://openairdocs.org/tcds/A6CE)
- Certificate PDF: https://openairdocs.org/files/sha256/11/e7/11e71196b773671ae1f612151e6fd682dcbb38f2d66d3eaf4d2a2e78884d90f8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A49DC7C6DB04601F85256CC1008211A7.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1478SW

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company 337E ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Cessna Aircraft Company 337F ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))

## 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.

ffabai'rud t Bepartment of ^transportation —federal atoiation administration Supplemental ¥gpe Certificate tsfavmtW' SA1478SW Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 23 Federal Aviation

• SA&ke faer6jifa&' •^/Ku/mder- A6CE Cessna 337E, 337F Installation of Mitchell Automatic Flight System Model AK345 consisting of Century III Autopilot with Optional Automatic Pitch Trim System, Radio Coupler and Glide Slope Coupler in accordance with Bulletin No. 461, Revision (2), dated 5-25-72 and Master Drawing List No. 87A569, Revision D, dated 5-25-72. Installation of Mitchell Radio Coupler Model 1C388-3 according to Bulletin No. 611, Revision (1), dated 4-16-74 and Master Drawing List No. 87A708, Revision A, dated 4-16-74.

FAA Approved Autopilot Flight Manual, dated June 9, 1972 is required.

FAA Approved Autopilot Flight Manual Supplement, P/N 68S168, dated 4-16-74 is required for Mitchell Radio Coupler Model 1C388-3.

March 30, 1972 9, 1972 "h« Piously approved modifications u:

„& — /• 4-16-74; 7-10-84, Revision 2 ion P. Watson Manager, Aircraft Certification Division Southwest^ Region

Thu ttrtifitatt may be liantffrreJ in accordance with f-AR 21-47.

FAAFougl lO-2(l(K61f

INSTRUCTIONS. The transfer endorsement below may be used lo notify the appropriate FAA Regional Office of ihe transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in ihc 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) umtrfT and itrrrl} from (Name of grantor) (Punt or type) .

(Address of grantor) f Nvtntrtr and itrret) . Stair, n»rf £1P vxltl Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-5SJ6**

## Every issue (1)

- July 10, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/11/e7/11e71196b773671ae1f612151e6fd682dcbb38f2d66d3eaf4d2a2e78884d90f8)

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