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

SA01353CH

Installation of Walter a.s. turboprop engine model M601E-l l or M601D-l l with the AVIA Propeller Ltd. model V510AG, V508E-AG/99 or V508E-AG/106 in accordance with Turbine Conversions Drawing List, Report 3100, Revision C, dated August I, 2005, or later FAA approved revision. Held by Turbine Conversions LTD. Last revised August 30, 2005. System: engine.

What it applies to

Kind of product
Engine
Design holder
Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.
Models
G-164B, G-164A
Type certificates
1A16, 1A16
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 21, 2026.