# STC SA1638WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Texas Transland LLC, United States
- Description: Fabrication and installation of400-gallon fiberglass hopper.
- Applied: February 16, 1968
- Status date: March 19, 2025
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/62/74/6274a5432c4e997993b8d02672d9e98130e0ce2190e43c1d515cda72061c05bc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123874834420260122161011.0001
- DRS record last changed: January 22, 2026
- Page: https://openairdocs.org/stc/SA1638WE

## ADs that name it (0)

None.

## Approved models (1)

- Thrush Aircraft LLC S2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

## 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.

F AA Form 8110-2 (03/21) LIMITATION OF APPLICABILITY.

This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated unless it is determined the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage.

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.

SA1638WE Texas Transland, LLC 1206 Hatton Road Wichita Falls, TX 76302 Part 8 Civil Air Regulations A4SW Thrush Aircraft, LLC S2R Fabrication and installation of 400 gallon Fiberglass Hopper in accordance with Transland, Inc., Sealed Drawing List Number 108.

February 16, 1968 October 31, 1974; January 20, 1983; April 15, 2002; March 19, 2025 April 5, 1968 for Manager, West Certification Branch

Page 2 of 2 FAA Form 8110-2 (03/21) SA1638WE

## Every issue (1)

- March 19, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/62/74/6274a5432c4e997993b8d02672d9e98130e0ce2190e43c1d515cda72061c05bc)

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