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

SA01526CH

Installation of C&D Associates Combustion Heater Kit 7 (Part Number CD12011K7). Held by Hartzell Engine Technologies, LLC, which holds 45 approved modifications in all. Last revised February 11, 2016. System: heating, ice protection and utility systems.

What it applies to

Kind of product
Aircraft
Design holder
REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated
Models
Lake LA-4-200, Lake LA-4, Lake LA-4A, Lake LA-4P, Lake Model 250
Type certificates
1A13, 1A13, 1A13, 1A13, 1A13
On this site
Consolidated Aeronautics Inc. LAKE LA-4 15 registered
Consolidated Aeronautics Inc. LAKE LA-4-200 140 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.