# STC SA838SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell glide slope coupler Model 1C493.
- Applied: September 18, 1967
- Status date: June 29, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10), [TCDS 3A13](https://openairdocs.org/tcds/3A13), [TCDS 3A21](https://openairdocs.org/tcds/3A21), [TCDS 3A25](https://openairdocs.org/tcds/3A25), [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS A-807](https://openairdocs.org/tcds/A-807), [TCDS Miscellaneous](https://openairdocs.org/tcds/Miscellaneous), [TCDS 1A10](https://openairdocs.org/tcds/1A10), [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS 2A13](https://openairdocs.org/tcds/2A13), [TCDS A1EA](https://openairdocs.org/tcds/A1EA), [TCDS 6A1](https://openairdocs.org/tcds/6A1)
- Certificate PDF: https://openairdocs.org/files/sha256/ef/5d/ef5d65618ceb7d6f6911656b05292f2dbfa7a00a678f3a60fca823193e73ff0b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/359CF7BCD62C6CFE85256CC20058E776.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA838SW

## ADs that name it (0)

None.

## Approved models (30)

- Miscellaneous Miscellaneous ([TCDS Miscellaneous](https://openairdocs.org/tcds/Miscellaneous))
- The Cessna Aircraft Company 182H ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182J ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182K ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 310H ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310J ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310K ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310L ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 320D ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- The Cessna Aircraft Company 320E ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- The Cessna Aircraft Company 401 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 402 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 411 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company T210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The New Piper Aircraft Inc. PA-23-235 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-28-140 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-28-150 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-28-160 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-28-180 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))
- The New Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The de Havilland Aircraft Co. Ltd (England) DH 104 Dove Series 6A ([TCDS A-807](https://openairdocs.org/tcds/A-807))
- Twin Commander Aircraft Corporation 500-A ([TCDS 6A1](https://openairdocs.org/tcds/6A1))
- Twin Commander Aircraft Corporation 500-B ([TCDS 6A1](https://openairdocs.org/tcds/6A1))
- Twin Commander Aircraft Corporation 500-U ([TCDS 6A1](https://openairdocs.org/tcds/6A1))

## 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.

Bepartmcnt of ^transportation —federal 2toiation administration Supplemental t^pe Certificate SA838SW Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 vJiw£u^i&Jete&tawf^'£^fic>(bwi*wfi*we6u<dM>^ J&e <a*^ 3 ^J&v Civil Air ^If-act/a^t'-ond.

See attached FAA Approved List See attached FAA Approved List See attached FAA Approved List Installation <pf Mitchell Glide Slope Coupler Model 1C493 according to Bulletin No. 366 dated September 18, 1967, and associated drawings described therein.

This STC approves only those portions, of the block diagrams which, cover the 1C493 Glide Slope Coupler installation.

Ssrbebdetermine5hS ^iistalJ.erf^ °ther Prevlously -Pprovid modificationssuA <e#?^i^ica& ^im& &i* A4tJi/i4s9*€4/rba/jza «*• .IV/MC/I' *&,'. &i£ *•€*£ *j ^ff^r- sa/iSiwv&&JAsui€/J>9*'rn4i+'n' 4mJe££e>f/Avn&vAtt/r'-* • * * cs f / / // -U' *. • Wcr September 18, 1967 L/,,£,~***~J: 6-29-84, Revision 1 October 13, 1967 ^/«^««^,^*/ Don P. Watson Manager, Aircraft Certification Division Southwest Region (T,tU)

FAA FowBI 10-2 (10-68)

**LIST OF AIRCRAFT ELIGIBLE FOR INSTALLATION OF MITCHELL GLIDE SLOPE COUPLER 1C493.**

S. T. C. NO. T.C. NO. AK NO.

SA 566 SW SA 576 SW SA 576 SW SA 617 SW SA 624 SW SA 621 SW SA 621 SW SA 638 SW SA 651 SW SA 637 SW SA 681 SW SA 707 SW 1A10 1A15 A1EA 3A16 3A13 3A10 3A25 3A15 3A2D 3A21 A7CE 2A13 AK184 AK186 AK186 AK194 AK197 AK198 AK198 AK202 AK206 AK209 AK216 AK217

AIRCRAFT MODELS Piper PA-23-235, PA-23-250, PA-E23-250 Piper PA-24-250, PA-24-260 Piper PA-30 Beech 95-55, 95-A55, 95-B55, 95-B55B, 95-C55 Cessna 182H, 182J, 182K Cessna 310K, 310L Cessna 320E Beech J35, K35, M35, N35, P35, S35, V35.

Beech 65-88 Cessna 210F, T210F Cessna 411 Piper PA-28-140, PA-28-150, PA-28-160, PA-28-180 Page 2 of 3

S. T. C. NO. T. C. NO. AK NO. AIRCRAFT MODELS SA 676 SW SA 662 SW SA 662SW SA 680 SW SA 667 SW A-807 1A15 A1EA 6A1 3A10 AK219 Dehaviland Dove DH-104-6A AK220 Piper PA-24-250, PA-24-260 AK220 Piper PA-30 AK221 Aero Commander 500A, 500B, 500U.

AK222 Cessna 310H, 310J.

SA 667 SW SA 745 SW SA 761 SW SA 767 SW SA 784 SW 3A25 A -765 AK222 Cessna 320D 3A20 3A20 A7CE Beech JRB-6, TC45-J (SNB-5) DISC, D18S, E18S, C45G. C-45H, TC-45H, TC-45G, E18S-9700, G18S.H18.

AK238 Beech 65-90, 65-A90 AK239 Beech A65 AK240 Cessna 401,402 SA 829 SW 3A21 AK254 Cessna 210G Page 3 of 3

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and <7P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

U.S. GOVERNMENT PRINTING OFFICE : I9«6 OF —205-579

## Every issue (1)

- June 29, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ef/5d/ef5d65618ceb7d6f6911656b05292f2dbfa7a00a678f3a60fca823193e73ff0b)

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