SR12332SE
Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System. Held by Mechanical Specialties, LLC. Last revised March 27, 2026. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Arrow Falcon Exporters Inc.; AST Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; Bell Textron Inc.; California Department of Forestry; Global Helicopter Technology Inc.; Hagglund Helicopters LLC; International Helicopters Inc.; JJASPP Engineering Services LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Midwest Aerospace TC LLC; Northwest Rotorcraft LLC; Overseas Aircraft Support Inc.; Overseas Aircraft Support Inc.; Overseas Aircraft Support Inc.; Overseas Aircraft Support Inc.; Overseas Aircraft Support Inc.; Red Tail Flying Services LLC; Richards Heavylift Helo Inc.; Richards Heavylift Helo Inc.; Richards Heavylift Helo Inc.; Robinson Air Crane Inc.; Robinson Air Crane Inc.; Robinson Air Crane Inc.; Southwest Florida Aviation International; Southwest Florida Aviation International; Southwest Florida Aviation International; Southwest Florida Aviation International; Tamarack Helicopters Inc.; Tamarack Helicopters Inc.; Tamarack Helicopters Inc.; WSH LLC
- Models
- UH-1H, UH-1F, 204B, 205A, 205A-1, 205B, 212, 412, 412CF, 412EP, TH-1L, UH-1E, UH-1L, UH-1F, UH-1H, UH-1H, UH-1B, UH-1H, UH-1B, HH-1K, TH-1L, UH-1E, UH-1L, TH-1F, UH-1F, UH-1P, UH-1H, TH-1L, UH-1B, UH-1E, UH-1H, UH-1L, UH-1B, UH-1A, UH-1B, UH-1H, TH-1F, UH-1F, UH-1P, SW204 (UH-1B), SW204HP (UH-1B), SW205 (UH-1H), SW205A-1, TH-1F, UH-1F, UH-1H, UH-1B
- Type certificates
- R00007DE, H11SW, H1SW, H1SW, H1SW, H1SW, H4SW, H4SW, H4SW, H4SW, H4NM, H4NM, H4NM, H2NM, R00002RC, H15NM, H5SO, R00004RC, H3NM, H5NM, H5NM, H5NM, H5NM, H12NM, H12NM, H12NM, R00005SE, H7SO, H7SO, H7SO, H7SO, H7SO, R00012AT, H3SO, H3SO, H3SO, R00008AT, R00008AT, R00008AT, H6SO, H6SO, H6SO, H6SO, H7NE, H7NE, R00010SE, H1RM
- On this site
- Bell 204 7 registered
Bell 205 58 registered
Bell 212 59 registered
Bell 412 87 registered
Bell HH-1 13 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 22, 2026.