# STC SA387NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ludke, Frederick E. II, United States
- Description: Installation of a Warner Super Scarab series 50A engine and engine mount; fiber glass cowling; 3 inch longer landing gear; a model 90 wing; and a Universal (Koppers) 220/0-85 propeller
- Applied: August 25, 1961
- Status date: December 27, 1976
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-306](https://openairdocs.org/tcds/A-306)
- Certificate PDF: https://openairdocs.org/files/sha256/6b/c9/6bc9205fe7655b2b50a9c1cf014b6ccb33f95e2d86d6ffd3b039089cbb52fb5a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BF8D50EA273F85BF86257AD4007363A8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA387NW

## ADs that name it (0)

None.

## Approved models (1)

- Monocoupe Corporation 90A ([TCDS A-306](https://openairdocs.org/tcds/A-306))

## What the certificate says

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

## Every issue (1)

- December 27, 1976: Issued, Current. [certificate](https://openairdocs.org/files/sha256/6b/c9/6bc9205fe7655b2b50a9c1cf014b6ccb33f95e2d86d6ffd3b039089cbb52fb5a)

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