# STC SA1677SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Southern Aircraft Corp, United States
- Description: Installation of wing leading edge cuff.
- Applied: March 16, 1973
- Status date: June 20, 1973
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/a0/8b/a08b68746e5873615238de4ce9a4c89a93e703f21c7e479d7b31506a5ea1b53e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A31686E6E490FD0E85256CC10083CEAE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1677SW

## ADs that name it (0)

None.

## Approved models (12)

- Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172G ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172H (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## 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.

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Btpartmtnt of 'Cransportation — Jf'cdtral Station SWministradon SupplementalCertificate SA1677SW Southern Aircraft Corporation P. 0. Box 78 Page, Oklahoma 7^939 Project A2628SW-S AAB-21^ -3 jd'J&£, Civil Air O-LI p 172A, 172B, 172C, 172D, 172E, 172F, 172G, 1T2H' 172I» 1?2K' 1T2L' 172M.T4-nj.j ^_, n n j -, *,*,Installation of winu leading cage cuff accordinc to Installation Instruction SAC500 and Drawings DPJOO-l dated 6/19/73, DF500-2 dated 2/17/73, and JH500-1 dated 3/18/73.

jrfiJwm^AAj*$s ^^ I Signature ) lien W. Welsh Chief, Engineering an^ Manufacturing Branch (Tille) __

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (JJumbtr and slirel) (City, Stall, and ZIP rode) from (Name of grantor) (Print or type) (Address of grantor) itimbt' and slreft) t City, Stale, and %IP code) Extent of Authority (if licensing agreement):

.... •• ... ..^ .. .-, t Signature of grantor (In ink): _ C FAA AC 89-5538

## Every issue (1)

- June 20, 1973: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a0/8b/a08b68746e5873615238de4ce9a4c89a93e703f21c7e479d7b31506a5ea1b53e)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.