From FAA DRS. DRS record last changed December 5, 2025.
What it approves
This modification installs Hamilton Standard Model54H60-77/A7109B-2 or54H60-77/A7121B-2 propellers. (440 Military C-131E MODIFIED IN ACCORDANCE WITH STC SA-1100)
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.