What it approves
Replace core assembly of AiResearch Primary/Secondary Air-to-Air Heat Exchanger, part number 194546-3
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 · 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 · 3
Every issue · 3
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| September 22, 2021 | Reissued, current | Certificate |
| November 14, 2012 | Reissued, earlier issue | Certificate |
| November 15, 2005 | Reissued, earlier issue | Certificate |