What it approves
Installation of an environmental control unit system cutoff switch on pilot cyclic grip.
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
Supplemental type certificate · Petroleum Helicopters Inc
- Holder
- Petroleum Helicopters Inc · United States
- Status
- Current · Issued
- Status date
- January 20, 1995
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
- Data sheet
- TCDSH3EU
From FAA DRS. DRS record last changed December 5, 2025.