# STC SA4988SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Lewis Allen, United States
- Description: Remove fiberglass wing tip and install 15 inch fabricated wing tip squared off on end.
- Applied: March 10, 1983
- Status date: April 12, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A16](https://openairdocs.org/tcds/1A16)
- Certificate PDF: https://openairdocs.org/files/sha256/30/36/30369639deba22ec4c245c866814f4fcbd8bcb5bf444ad525396081c2f099b42
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/920E94B45B19073085256CC2000E4022.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4988SW

## ADs that name it (0)

None.

## Approved models (1)

- Allied Ag Cat Productions Inc. G-164B ([TCDS 1A16](https://openairdocs.org/tcds/1A16))

## 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: SA4988541 No project number (JL) WS-190 This certificate issued to: A11 en LewIs D/B/A Lewis Aircraft Service P. 0. BOx 1439 Oak Grove, LA 71263 Part 8.10(2) dihe CIV11 AIx Regulations.

Original Product -Type bertificate Numben: 1A16 Make: Schweizer (Grumman) Model: G-164B Description of Type Design Change:

Remove fiberglass wing tip and install 15" fabricated wing tip squared off on end in accordance with Drawings No.3-000 Bottom Skin; No. 3-100 Top Skin;

No. 3-200 Installation Instructions, all dated 3/1/83.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

Watson Ay dinction of the Administralf MusliM. Estood TO MINISTRATIO Manager, Aircraft Certification Division Southwest Region (Title)

47.

**FAA FORK 8110-2 (10-68)**

## Every issue (1)

- April 12, 1983: Issued, Current. [certificate](https://openairdocs.org/files/sha256/30/36/30369639deba22ec4c245c866814f4fcbd8bcb5bf444ad525396081c2f099b42)

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