What it approves
Installation of Lycoming IO-720- B1B engine and increase take-off and landing weight to 7800 lbs.
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 · 1
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| Twin Commander Aircraft Corporation | 500-S | 6A1 |
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| April 16, 2008 | Reissued, current | Certificate |
| January 30, 2006 | Reissued, earlier issue | Certificate |