Supplemental type certificate · Piedmont Aviation Inc
- Holder
- Piedmont Aviation Inc · United States
- Status
- Current · Issued
- Status date
- January 1, 1960
- Product
- Aircraft · Large Multi-Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Swivel seat intercostals at Station 616.
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 |