# STC SA1420NM-S

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Bill Hubler, United States
- Description: Installation of wing tip spill plates
- Applied: November 5, 1981
- Status date: January 20, 1982
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/fd/a6/fda632a386ba62df140ac5788e70058e80fe09a3d819f13849bce330aaab5f2d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EE692A6BB06ABCC886257A1500531992.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1420NM-S

## ADs that name it (0)

None.

## Approved models (1)

- Thrush Aircraft Inc. S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA1420NM-S This certificate issued to: Bill Hubler Purt 8 st the CIViL Air Regulations Original Product - Type bertificate Numben: A4 SW Make: Ayres Corp.

Model: S-2R Description of Type Design Change: Installation of wing tip spill plates in accordance with Bill Hubler photographs 1 and 2.

LimilalunsandEndilions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Ayres Corp. Type Number A4SW, Model S-2R, Serial Number 1820R only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: November 5, 1981 Jute pissued:

Date of Issuance: January 20, 1982 I ate amendat:

FEDERAL AVIATION lion of the Idministrater TOMINIS TRAN deliniet, seattle Area aircrait Certification Office, ANM-100S (Signature ) (Title )

## Every issue (1)

- January 20, 1982: Issued, Current. [certificate](https://openairdocs.org/files/sha256/fd/a6/fda632a386ba62df140ac5788e70058e80fe09a3d819f13849bce330aaab5f2d)

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