# STC SA1-647

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Woodstock Aircraft Services Inc., United States
- Description: Installation of leading edge landing lights (2) as a unit outboard of structure.
- Applied: November 10, 1961
- Status date: September 5, 2007
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/8e/cf/8ecf18050b20bf0a8a45702b3915873e15996850e44e15e193be83cc6f69d180
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6A6851886DAD4E7B86257B05005E17E2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1-647

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 170 ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## 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.

Number SA1-647 This certificate issued to

Part 3 of the Civil Air Regulations.

Installation of leading edge landing lights (2) as a unit outboard of structure in accordance with drawing 6CB-19 100.

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 a product, the holder must give the other person written evidence of that permission

Woodstock Aircraft Services, Inc.

75 Hanger Rd.

White Lake, NY 12786 A-799 Make: The Cessna Aircraft Company Model: 170 Date reissued: August 15, 2007, September 05, 2007

( Signature) Anthony Socias Manager New York Aircraft Certification Office

( Title) Date of application: November 10, 1961

Date of issuance: November 22, 1961

## Every issue (3)

- September 5, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8e/cf/8ecf18050b20bf0a8a45702b3915873e15996850e44e15e193be83cc6f69d180)
- August 15, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ac/7b/ac7be15e09be75ea864dcececf60721502c641e9ca62960e37107854a42b89f9)
- November 10, 1961: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ac/7b/ac7be15e09be75ea864dcececf60721502c641e9ca62960e37107854a42b89f9)

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