# STC SE483SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Spartan Aircraft Company, United States
- Description: Modification to R-985 cam assembly and cam drive gears.
- Status date: January 1, 1960
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5E-1](https://openairdocs.org/tcds/5E-1), [TCDS E-123](https://openairdocs.org/tcds/E-123)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/218E3E550FA20962862570D2006B5C47.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE483SW

## ADs that name it (0)

None.

## Approved models (2)

- Pratt & Whitney Division R-985 Series ([TCDS 5E-1](https://openairdocs.org/tcds/5E-1))
- Pratt & Whitney Division Wasp Jr. Series ([TCDS E-123](https://openairdocs.org/tcds/E-123))

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