# STC SA489NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Skarperud, Dan, United States
- Description: Installation of Deemers Cessna 150 wing tips
- Applied: July 21, 1977
- Status date: July 22, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A2](https://openairdocs.org/tcds/5A2)
- Certificate PDF: https://openairdocs.org/files/sha256/c3/ce/c3ce33da1e8b691336f1b43d095c8cfe01e238a554615135981690a2c9d44bc8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8FC665F5B26934086257A450049C2BE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA489NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 140A ([TCDS 5A2](https://openairdocs.org/tcds/5A2))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- July 22, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c3/ce/c3ce33da1e8b691336f1b43d095c8cfe01e238a554615135981690a2c9d44bc8)

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