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

SH7357SW

Installation of a Casey Copter Environmental Control System, Kit No. 206-C30-A02. (206L-3 S/N 51218 ONLY). Held by Sextant Avionique, INC, which holds 31 approved modifications in all. Last revised January 10, 1996. System: heating, ice protection and utility systems.

What it applies to

Kind of product
Aircraft
Design holder
Bell Helicopter Textron (Canada)
Models
206L-3
Type certificate
H2SW
On this site
Bell 206 JetRanger and LongRanger 1,455 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 7, 2026.