# STC SA904NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: La Grande, Dennis E., United States
- Description: Installation of a modified instrument panel, an aircraft alternator system, and a shortened controlc olumn
- Applied: August 12, 1979
- Status date: March 19, 1980
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-768](https://openairdocs.org/tcds/A-768)
- Certificate PDF: https://openairdocs.org/files/sha256/c6/94/c6948136470f1cd81d16fd76e69354998d8aaad9a1d4a69010b0aca7b69d4fb7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C69A2FB5185C8BBE86257A45005234D1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA904NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 120 ([TCDS A-768](https://openairdocs.org/tcds/A-768))

## 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: SA90ANW This certificate issued to: Dennis E. La Grande Part 42 of the Civi 1 Air Regulations:

Original Product - Typebentificate Number: A-768 Make: Cessna Model: 120 Dennis E. La Grande sketches, Nos. 1, 2, and 3.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna 120, Serial Number 11767 only. A copy of this Certificate and Dennis E. La Grande sketches shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: August 12, 1979 Date Reissued:

Date of Issuance: March 19, 1980 Date Amended:

FEDERAL AVIATION By Direction of the Administrator 0.2. Ria (Singlingen

TAINISTRATO ON Acting Chief, Engineering and Manufacturing Branch (Title)

47.

## Every issue (1)

- March 19, 1980: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c6/94/c6948136470f1cd81d16fd76e69354998d8aaad9a1d4a69010b0aca7b69d4fb7)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.