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

ST04324NY

Installation of the Honeywell Solid State Cockpit Voice Recorder (SSVR) system. Held by Avmax Aviation Services INC (Canada), which holds 29 approved modifications in all. Last revised March 26, 2019. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited
Models
DHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, DHC-8-315
Type certificates
A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM
On this site
Boeing Of Canada/Dehav Div DHC-8 6 registered
Dehavilland DHC-8 28 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.