What it approves
R-985 cylinders modified to accept R-1830 Series rocker shaft bushings and R-1830 rocker shaft.
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
No AD in this release names this STC
Supplemental type certificate · Spartan Aircraft Company
- Holder
- Spartan Aircraft Company · United States
- Status
- Current · Issued
- Status date
- January 1, 1960
- Product
- Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 5, 2025.