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

ST04270AT

Install the VTOL ASSALT V3 Windscreen Laminate Kit. Held by Vtol LLC. Last revised July 7, 2016. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Arrow Falcon Exporters Inc.; AST Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Bell Helicopter Textron Inc.; Global Helicopter Technology Inc.; Hagglund Helicopters LLC; International Helicopters Inc.; JJASPP Engineering Services LLC; Northwest Rotorcraft LLC; OAS Parts LLC; OAS Parts LLC; OAS Parts LLC; OAS Parts LLC; Richards Heavylift Helo Inc.; Richards Heavylift Helo Inc.; Richards Heavylift Helo Inc.; Robinson Air Crane Inc.; Robinson Air Crane Inc.; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rowland Aviation Services LLC; San Joaquin Helicopters; Smith Helicopters; Southwest Florida Aviation International; Southwest Florida Aviation International; Tamarack Helicopters Inc.; Tamarack Helicopters Inc.; West Coast Fabrications
Models
UH-1H, UH-1F, 204B, 205A-1, 205A, 205B, 212, 214B-1, 214B, 412, 412CF, 412EP, UH-1E, UH-1L, UH-1H, UH-1H, UH-1B, UH-1H, UH-1H, UH-1B, UH-1E, UH-1H, UH-1L, UH-1A, UH-1B, UH-1H, UH-1F, UH-1P, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, UH-1P, UH-1B, UH-1B, UH-1E, UH-1B, UH-1H, UH-1F, UH-1H, UH-1E
Type certificates
R00007DE, H11SW, H1SW, H1SW, H1SW, H1SW, H4SW, H6SW, H6SW, H4SW, H4SW, H4SW, H4NM, H4NM, R00002RC, H15NM, H5SO, R00004RC, R00005SE, H7SO, H7SO, H7SO, H7SO, H3SO, H3SO, H3SO, R00008AT, R00008AT, H13WE, H5NM, H12NM, H13WE, H5NM, H12NM, R00012AT, H1RM, H8NM, H6SO, H6SO, H7NE, R00010SE, H9NM
On this site
Bell 204 7 registered
Bell 205 58 registered
Bell 212 59 registered
Bell 214 31 registered
Bell 412 87 registered
Bell UH-1 Huey (Iroquois) 404 registered
Northwest Rotorcraft Llc UH-1 6 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.