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

SR11898NY

Installation of Outerlink Corporation Air IP system. Held by Sterling Helicopter, which holds 8 approved modifications in all. Last revised February 5, 2026. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited; Bell Textron Canada Limited
Models
206, 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, 206L-4, 407
Type certificates
H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW
On this site
Bell 206 JetRanger and LongRanger 1,455 registered
Bell 407 984 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.