Supplemental type certificate · Northwest Airlines Inc.
- Holder
- Northwest Airlines Inc. · United States
- Status
- Current · Issued
- Status date
- June 3, 1958
- Applied
- May 26, 1958
- Product
- Aircraft · Large Airplane
From FAA DRS, with our copy of the certificate PDF. DRS record last changed July 15, 2026.
What it approves
C-O-Two visual smoke detector, Type A1-V, P/N 74800.
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
| Make | Model | Data sheet |
|---|
| McDonnell Douglas Corporation | DC-4 | A-762 |
| The Boeing Company | C54A-DC | A-762 |
| The Boeing Company | C54B-DC | A-762 |