What it approves
Installation of AC SR47P spark plugs.
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 · Signature Flight Support Corporation
- Holder
- Signature Flight Support Corporation · United States
- Status
- Current · Reissued
- Status date
- September 4, 1992
- Product
- Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 5, 2025.