From FAA DRS. DRS record last changed December 5, 2025.
What it approves
Installation of Smiths Industries Type 3B series (WL/1101 AM/MS or1103 AM/MS) servoed altimeter WL/504/CUF altitude alerting unit, and Smiths pressure error transducer (Type A108 for Model24 and Type 104 for Model 24B).
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.