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

SH8609SW

Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. Held by Isolair INC., which holds 22 approved modifications in all. Last revised February 6, 2025. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Arrow Falcon Exporters Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Hagglund Helicopters LLC; JJASPP Engineering Services LLC; Northwest Rotorcraft LLC; Overseas Aircraft Support Inc.; Richards Heavylift Helo Inc.; Rotorcraft Development Corporation; Southwest Florida Aviation International
Models
UH-1H, 205A-1, 210, UH-1H, UH-1H, UH-1H, UH-1H, UH-1H, UH-1H, SW205 (UH-1H)
Type certificates
R00007DE, H1SW, H1SW, H15NM, R00004RC, R00005SE, H7SO, H3SO, H13WE, H6SO
On this site
Bell 205 58 registered
Bell UH-1 Huey (Iroquois) 404 registered
Northwest Rotorcraft Llc UH-1 6 registered
Southwest Florida Aviation SW205 5 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.