Supplemental type certificate · AlliedSignal Commercial Avionics Systems
- Holder
- AlliedSignal Commercial Avionics Systems · United States
- Status
- Current · Issued
- Status date
- December 5, 1986
- Product
- Aircraft · Small Multi-Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Installation of Allied/Bendix microwave landing system MLS-21.
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 |
|---|
| The New Piper Aircraft Inc. | PA-42-720 | A23SO |