# STC SA990NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Olympic Parachute Club, United States
- Description: Installation of a Lycoming O-360-A2A engine, AVCON carburetor air box (P/N 17009-30, Bendix electric Auxiliary fuel pump (P/N 476087), Harrison oil cooler (P/N 852-6250), McCauley 1A200/FA8041 propeller, and associated systems
- Applied: June 17, 1980
- Status date: July 17, 1980
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/fa/57/fa577e922fe29853a3899c888db1379af9308e0380f36e3d406deabd2abb7118
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B248F747E81673286257A08004BB9AE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA990NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 170B ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## What the certificate says

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

## Every issue (1)

- July 17, 1980: Issued, Current. [certificate](https://openairdocs.org/files/sha256/fa/57/fa577e922fe29853a3899c888db1379af9308e0380f36e3d406deabd2abb7118)

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