Approved modifications · supplemental type certificate · current · issued

SA397CH

Installation of Hartzell (P)HC-C3YF-1RF/F8468A-6 or -8R propeller with Hartzell C3575-( ) spinner on Cessna A185E and A185F models with IO-520-D engine; on the 206 series models, installation of Hartzell Model(P)HC-J3YF-1RF/F8468A-6R or -8R propeller with Hartzell C4582-( ) spinner or Model (P)HC-C3YF-1RF/ F8468A-6R or -8R propeller with Jartzell A2295-1(P) spinner. Held by Wipaire INC, which holds 64 approved modifications in all. Last revised August 21, 1995. System: propeller.

What it applies to

Kind of product: Aircraft
Design holder: The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
Models: A185F, A185E, TP206A, P206E, P206D, TP206B, P206B, P206A, P206, U206F, 206, P206C, U206A, U206D, TP206C, U206B, U206E, U206, TP206E, TP206D, U206C, TU206C, TU206E, TU206G, TU206A, TU206D, TU206B, U206G, TU206F
Type certificates: 3A24, 3A24, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE
On this site: Cessna 206 Stationair 213 registered
Cessna A185 Skywagon 1,372 registered
Cessna P206 Super Skylane 163 registered
Cessna TP206 25 registered
Cessna TU206 343 registered
Cessna U206 Stationair 798 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.