# STC SA1078GL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Great Lakes Aero Products Inc, United States
- Description: Installation of Great Lakes windshield P/N W-2070, W/T-2070 or WK-2070.
- Applied: October 14, 1986
- Status date: January 23, 2007
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A25](https://openairdocs.org/tcds/3A25)
- Certificate PDF: https://openairdocs.org/files/sha256/65/c0/65c0bbd313a5f815d2e6c038f7aa1189389a0955bf7c1d52b045d55259fe6690
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B17C8B1AC80FEA71862572FF004B5E90.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1078GL

## ADs that name it (0)

None.

## Approved models (6)

- Cessna Aircraft Company 320 ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 320-1 ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 320A ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 320B ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 320C ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 320D ([TCDS 3A25](https://openairdocs.org/tcds/3A25))

## 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 3A25 for complete Certification Basis.)

3A25 Make :

Cessna Aircraft Company Model : 320, 320-1, 320A, 320B, 320C, 320D

Installation of Great Lakes Aero Products windshield part numbers W-2070, W/G-2070, or W/T-2070 in accordance with Great Lakes Aero Products Installation Instructions A-6, Revision B, dated October 20, 1986, 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 : October 14, 1986

Date of issuance : October 24, 1986

Date reissued : September 26, 2001, January 23, 2007

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

(Title)

## Every issue (1)

- January 23, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/65/c0/65c0bbd313a5f815d2e6c038f7aa1189389a0955bf7c1d52b045d55259fe6690)

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