What it approves
Turbosupercharged Lycoming O-540-A1B5, -A1D5, or -A3D5 engines (S/N's 27-1 thru 27-2504).
ADs that name this STC · 2
An AD can apply because an STC is installed, or mention one in its text.
Supplemental type certificate · GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services
From FAA DRS. DRS record last changed December 5, 2025.
Turbosupercharged Lycoming O-540-A1B5, -A1D5, or -A3D5 engines (S/N's 27-1 thru 27-2504).
An AD can apply because an STC is installed, or mention one in its text.