The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

ST01472SE

Install a Hartzell HC-B3TN-3AE(Y)/T10290N+2 or HC-B3TN-3AE(Y)/T10290N(K)+2 propeller. Held by Kenmore Air Harbor LLC, which holds 56 approved modifications in all. Last revised April 5, 2019. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company
Models
208, 208B
Type certificates
A37CE, A37CE
On this site
Cessna 208 Caravan 1,022 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 5, 2026.