STC SA622CH

Supplemental type certificate · Duncan Aviation

Holder
Duncan Aviation · United States
Status
Current · Issued
Status date
February 12, 1997
Product
Aircraft · Small Multi-Engine
Certification basis
Part 21
Data sheet
TCDSA7CE

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

What it approves

Replace two Pratt & Whitney model PT6A-112 engines with two Pratt & Whitney model PT6A-135/135A engines and Hartzell model HC-B3TN-3(C, K)/ T10178(B, K)-8R propellers.

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

MakeModelData sheet
The Cessna Aircraft Company425A7CE