STC SA1221WE

Supplemental type certificate · American Airlines Inc

Holder
American Airlines Inc · United States
Status
Current · Amended
Status date
December 29, 1966
Product
Aircraft · Large Multi-Engine
Certification basis
Part 21

From FAA DRS. DRS record last changed December 6, 2025.

What it approves

Dual Collins AL-101 low range radio altimeter.

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 · 3

MakeModelData sheet
The Boeing Company7074A21
The Boeing Company7074A26
The Boeing Company7204A28