Supplemental type certificate · Petroleum Helicopters Inc
- Holder
- Petroleum Helicopters Inc · United States
- Status
- Current · Issued
- Status date
- December 19, 1985
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Increase fuel system capacity.
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 |
|---|
| Bell Helicopter Textron | 412 | H4SW |