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

SR09326RC

Development and Installation of High Visibility Crew Door in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-01073, No Revision, Dated July 20, 2001, or later FAA approved revision. Held by Bell Helicopter Textron INC., which holds 366 approved modifications in all. Last revised February 9, 2011. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Bell Helicopter Textron (Canada)
Models
407
Type certificate
H2SW
On this site
Bell 407 985 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 20, 2026.