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

SR00657NY

Modification of left hand and/or right hand side cargo door. Held by Eurocopter Canada Limited (Canada), which holds 65 approved modifications in all. Last revised November 24, 1998. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France
Models
AS-350B2, AS-350B3, AS-350BA, AS-350D1, AS-350D, AS-350C, AS-350B1, AS-350B
Type certificates
H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU
On this site
Airbus Helicopters AS350 AStar (Écureuil), now H125 891 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.