# STC SA3701WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ralph R. Perry, United States
- Description: ONE ONLY STC, SN 2256R:  Installation of styrofoam filling with fiberglass covering on vertical and horizontal stabilizers
- Applied: May 12, 1978
- Status date: July 21, 1978
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/cf/1a/cf1a58988975ec9bfa677928411050f85523d7341b7e8b9b05ffd11c200adc43
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D3FB4E78A523709862575DD00640A36.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3701WE

## 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.

Limited states of Dimenra Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3701NE This certificate issued to: Ralph R. Perry P. O. Box 2010 El Centro, CA 92243 Purt 8 of the Civil Aix Regulalions, effective October 11, 1950.

Original Product - Type berlificate Number: ALSW Make: Rockwell (SNOW) Model: $-2R, N8496V, Serial No. 2256R Restricted Category Description of Type Design Change:

Installation of styrofoam filling with fiberglass covering on vertical and horizontal stabilizers in accordance with Ralph R. Perry's Modification Instructions for Thrush S-2R Horizontal and Vertical Stabilizer Modification dated May 12, 1978.

Limitations and Conditions: Data not suitable for reproduction of installation in other aircraft; therefore, they are satisfactory for Rockwell S-2R, N8496V, Serial No. 2256R only. No additional modifications of this type are to be approved solely by reference to this Supplemental Type Certificate or to the data submitted therefor.

Date of Application: May 12, 1978 Date Reissued:

sue of issuance. July 21, 1970 Sale umended:

EDERAL AVIATION By tige de lineaten ( Signature ) OMINISTRANO Chief, Aircraft Modification Branch (Title) eding " vears This cei ficate n vi. ans ferred in accordance with FAR 21.47

**FAA FLI**

## Every issue (1)

- July 21, 1978: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cf/1a/cf1a58988975ec9bfa677928411050f85523d7341b7e8b9b05ffd11c200adc43)

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