Supplemental type certificate · Western Airlines Inc
- Holder
- Western Airlines 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
Audible mach airspeed warning system.
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 |
|---|
| Lockheed Aircraft Corporation | 188A | 4A22 |