What it approves
Replacement of original 'T' style control yoke with 'Y' style control yoke.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
Part 3 of the Civil Aviation Regulations.
Replacement of original “T” style control yoke with “Y” style control yoke. Applicable part numbers are listed in General Aviation Concepts Document No. GAC – DOC – 17X-1 Rev. Original, dated April 20, 2018, or later FAA approved revision. Installation is to be accomplished in accordance with General Aviation Concepts Document No.
GAC – DOC – 17X-1 Rev. Original, dated April 20, 2018, or later FAA approved revision.
1) The installer must determine whether this design change is compatible with previously approved modifications.
2) If the holder agrees to permit another person to use this Certificate to alter the product, the holder shall give the other person written evidence of that permission.
3) The FAA has determined that no additional Instructions for Continued Airworthiness are required for this STC.
Date of application: April 15, 1992
Date of issuance: April 29, 1992
General Aviation Concepts 3033 Taxilane A North Pole, AK 99705 A-799, 3A12, and 3A17 Cessna 170, 170A, and 170B 172, 172A, 172B, 172C, and 172D 175, 175A, 175B, 175C, and P172D Date reissued: April 11, 2018; April 13, 2018;
Date amended: May 21, 2019
(Signature) August A. Asay Manager, Anchorage ACO Branch
(Title)
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 13
| Make | Model | Data sheet |
|---|---|---|
| Textron Aviation Inc. | 170 | A-799 |
| Textron Aviation Inc. | 170A | A-799 |
| Textron Aviation Inc. | 170B | A-799 |
| Textron Aviation Inc. | 172 | 3A12 |
| Textron Aviation Inc. | 172A | 3A12 |
| Textron Aviation Inc. | 172B | 3A12 |
| Textron Aviation Inc. | 172C | 3A12 |
| Textron Aviation Inc. | 172D | 3A12 |
| Textron Aviation Inc. | 175 | 3A17 |
| Textron Aviation Inc. | 175A | 3A17 |
| Textron Aviation Inc. | 175B | 3A17 |
| Textron Aviation Inc. | 175C | 3A17 |
| Textron Aviation Inc. | P172D | 3A17 |
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| May 21, 2019 | Amended, current | Certificate |
| April 11, 2018 | Reissued, earlier issue | Certificate |