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

ST01045WI

Installation of BE Aerospace Sweep-on Full Face Crew Oxygen Mask. STC SA1810SW must be installed first. Held by Midcoast Aviation INC, which holds 227 approved modifications in all. Last revised January 24, 2002. System: emergency equipment.

What it applies to

Kind of product
Aircraft
Design holder
Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation
Models
G-1159B, G-1159 Series, G-1159, G-1159A
Type certificates
A12EA, A12EA, A12EA, A12EA
On this site
Gulfstream American Corp G-1159 29 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 8, 2026.