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

SR04358CH

Installation of an Ultra Electronics - Flightline Systems, Inc. Health Usage Monitoring System (HUMS). Held by Ultra Electronics Ice INC.. Last revised March 9, 2023. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Airbus Helicopters Deutschland GmbH
Models
MBB-BK 117 C-2
Type certificate
H13EU
On this site
Airbus Helicopters MBB-BK 117 C-2 158 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 12, 2026.