# STC SA175GL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Robert L. or Barbara V. Williams, United States
- Description: Installation of conventional landing gear
- Applied: September 8, 1976
- Status date: April 6, 1989
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A19](https://openairdocs.org/tcds/3A19)
- Certificate PDF: https://openairdocs.org/files/sha256/20/20/2020b4349e18c4e54aaa91087d541b7ed02a600b4f67991ff9b3f41462565181
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/42BB9FB9EE85B58985256CC10083CFF8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA175GL

## ADs that name it (0)

None.

## Approved models (18)

- Cessna Aircraft Company 150 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150A ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150B ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150C ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150D ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150E ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150F ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150G ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150H ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150J ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150K ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150L ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 150M ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company 152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company A150K ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company A150L ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company A150M ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company A152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))

## What the certificate says

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

anted States of diana Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SAI75GL This certificate issued to: Robert L. or Barbara V. Williams Box: 608 Udall, KS 67146 Certifies that the change in the type design for the following finduct with the limitations and senditions therefer as specifed ho ets the iness reguirements of Purt 3 / the CIVII AIr Regulalions (See T.C. Data Sheet No. 3A19 for complete certification basis) Original Product - Type Certificate Number: 3A19 Make: Cessna Make: 150, 150A through 150H, 150J through 150M, 152, A150K, L, M and A152 Description of Type Design Change:

Installation of conventional landing gear in accordance with T.D.M., Inc. Drawing List No. 92877 with an FAA approval date of February 28, 1989, or later Note: This drawing list is applicable to all previous approvals.

A. This approval should not be incorporated in any aircraft of this specific model on which other approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously incorporated approved modifications will not introduce any adverse effect upon the (See Continuation Sheet)

Date of Application: September 8, 1976 Dulerissued: July 28, 1977; April 19, 1979;

April 13, 1982 Fate if issue June 6, 1977 Val amendidOctober 14, 1977; February 17, 1978 April 14, 1978; December 5, 1978;November 24, 1981 TATIO By Direction of the Administrator Laurence A. Henson February 28, April 6, 1989 1989 (Signature) ADMIN Lawrence A. Herron, Manager Wichita Aircraft Certification Office : (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA375GL Limitations and Conditions: , Continued:

B. Remove following existing placards:

1. Maneuver Entry Speed Intentional spins with flaps Spins Use Slow Deceleration extended prohibited.

C. Add permanent placard in full view of the pilot:

Spins prohibited.

FAA FORM 8110-2-1 (10-69) PAGE 2 OF 2 PAGES April 6, 1989

## Every issue (1)

- April 6, 1989: Amended, Current. [certificate](https://openairdocs.org/files/sha256/20/20/2020b4349e18c4e54aaa91087d541b7ed02a600b4f67991ff9b3f41462565181)

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