# STC SA270GL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Great Lakes Aero Products Inc, United States
- Description: Installation of forward windows, P/N's W-, W/T-, WG-2058-187 or-250 and W-, W/G-20599-187 or -250.
- Applied: December 2, 1978
- Status date: November 26, 2008
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/88/e7/88e759b3f42b308795181f08278bf7c58088d6c04c73d85499ead5d5d1c04c47
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D69652B8DCA1B10B86257527006802B8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA270GL

## ADs that name it (0)

None.

## Approved models (4)

- Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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.

This certificate issued to Great Lakes Aero Products 915 Kearsley Park Blvd.

Flint, MI 48503

Part 3 of the Civil Air Regulations (See Type Certificate Data Sheet 1A15 for complete Certification Basis.)

1A15 Make :

Piper Aircraft, Inc.

Model : PA-24, PA-24-250, PA 24-260, PA-24-400

Installation of Great Lakes Aero Products forward windows, part numbers P/N’s W-, W/T-, W/G-2058-187/ -250; W-, W/T-, W/G-2059-187/-250, in accordance with Great Lakes Aero Products Installation Instructions A-5, no revisions, dated August 1978, or later FAA approved revisions.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. A copy of this certificate or later FAA approved revision must be maintained as part of the permanent records for the modified aircraft.

3. 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.

Date of application : September 2, 1978

Date of issuance : October 2, 1978

Date reissued : June 26, 1984, September 26, 2001, January 29, 2007, November 26, 2008

( Signature) Mary Ellen A. Schutt Manager, Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title)

## Every issue (2)

- November 26, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/88/e7/88e759b3f42b308795181f08278bf7c58088d6c04c73d85499ead5d5d1c04c47)
- January 29, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/07/ad/07ada38ca6496833a3eda536ab2f5b4cc5f85dd84646786105916637d142f9e9)

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