What it approves
Immersion heaters in oil tanks 404-2055010 for ground operation only.
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
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| Martin-Marietta Corporation | 404 | 1A7 |