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

SH218NW-D

Installation and maintenance of Allison 250-C20 engine equipped with Bendix fuel control system. Held by American Eurocopter Corporation, which holds 489 approved modifications in all. Last revised June 30, 2003. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Eurocopter Deutschland GmbH
Models
BO-105C
Type certificate
H3EU
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.