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

ST01539NY

Installation of one AlliedSignal KHF-950 HF System. Limited to installation on DHC-8-100, serial number 141. Held by Field Aviation CO, INC (Canada), which holds 20 approved modifications in all. Last revised September 27, 2002. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier-Rotax GmbH
Models
DHC-8-100 Series
Type certificate
A13NM
On this site
Bombardier DHC-8 Dash 8 and Q400 58 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 21, 2026.