Supplemental type certificate · MASCO Service Corp
- Holder
- MASCO Service Corp · United States
- Status
- Current · Reissued
- Status date
- April 18, 1997
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Installation and operation of a dual Litef LCR-92, Dual Fiber Optic Gyro Attitude Heading Reference System(AHRS) installed.
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 · 2
| Make | Model | Data sheet |
|---|
| Bell Helicopter Textron | 212 | H4SW |
| Bell Helicopter Textron | 412 | H4SW |