# STC SA2635NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: McHugh Aviation Inc, United States
- Description: Modify airplane by extending wings 16 inches, relocating the ailerons and flaps 16 inches outboard and installing trailing edge inserts on the wings.
- Applied: March 4, 1983
- Status date: April 2, 2007
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-769](https://openairdocs.org/tcds/A-769)
- Certificate PDF: https://openairdocs.org/files/sha256/1f/fd/1ffd460a11f016583ee26b8f488fb092c4285092109fe33e87e7eca2d79f22d9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C826E5AF9FD664FD862572BA006E41DB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2635NM

## ADs that name it (0)

None.

## Approved models (1)

- Sky Enterprises Inc. RC-3 ([TCDS A-769](https://openairdocs.org/tcds/A-769))

## 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 SA2635NM

This certificate, issued to McHugh Aviation Inc.

3763 Image Drive Anchorage, AK 99504

Part 3 of the Civil Air Regulations.

Original Product⎯Type Certificate Number: A-769 Make: Republic Model: RC-3

Description of the Type Design Change: Modify airplane by extending wings 16 inches, relocating the ailerons and flaps 16 inches outboard and installing trailing edge inserts on the wings in accordance with Master Drawing List SP-5000, Revision IR, dated April 6, 2006, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to only the Republic RC-3 Seabee.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records of the modified aircraft.

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.

Date of application: March 4, 1983 Date reissued: June 25, 2004 Date of issuance: August 3, 1984 Date amended: June 25, 2004; April 2, 2007

Original signed by Ken Fairhurst (Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (2)

- April 2, 2007: Amended, Current. [certificate](https://openairdocs.org/files/sha256/1f/fd/1ffd460a11f016583ee26b8f488fb092c4285092109fe33e87e7eca2d79f22d9)
- June 25, 2004: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/08/86/0886dc8418856fafdd3faf746ee6bffd0d90edeb5d79f21d607377ad98a5e9c1)

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