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

ST01572SE

Installation of KID Systeme SkyPower (TM) In Seat Power Supply System. Held by Northwest Aerospace Technologies INC, which holds 74 approved modifications in all. Last revised February 28, 2006. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
747-400 Series
Type certificate
A20WE
On this site
Boeing 747 192 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.