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

SA02480AK

Installation of shoulder harnesses in passenger rows 1-3. Held by Alaska Aircraft Sales, INC.. Last revised February 9, 2017. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
Viking Air Limited; Viking Air Limited
Models
DHC-2 Mk.I, DHC-2 Mk.III
Type certificates
A-806, A-806
On this site
Dehavilland DHC-2 255 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.