What it approves
Installation of Lycoming IO-720-A1A, or A1B engines.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
This certificate is a scan without a text layerOpen the PDF to read it.
ADs that name this STC · 2
An AD can apply because an STC is installed, or mention one in its text.