# STC SA85NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Collins Aviation Service, United States
- Description: Installation of a derated Continental E-225-8 engine
- Applied: December 26, 1973
- Status date: December 28, 1973
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/ca/8a/ca8ac815a2c97d351160f73fa703e33963d2ebc211cf13807fdf915a298e4cce
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A4E579F130C3F22B86257AE80071926D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA85NW

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation B35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## What the certificate says

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

## Every issue (1)

- December 28, 1973: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ca/8a/ca8ac815a2c97d351160f73fa703e33963d2ebc211cf13807fdf915a298e4cce)

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