SR00929SE
Fabrication of tail boom mounted strakes. Held by Blr Aerospace LLC., which holds 33 approved modifications in all. Last revised August 23, 2018. System: rotorcraft systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Arrow Falcon Exporters Inc.; AST Inc.; Hagglund Helicopters LLC; JJASPP Engineering Services LLC; Northwest Rotorcraft LLC; OAS Parts LLC; Richards Heavylift Helo Inc.; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Southwest Florida Aviation International; Tamarack Helicopters Inc.; Tamarack Helicopters Inc.; Tamarack Helicopters Inc.
- Models
- UH-1H, UH-1F, UH-1H, UH-1H, UH-1H, UH-1H, UH-1H, TH-1F, UH-1F, UH-1H, UH-1P, UH-1H, TH-1F, UH-1F, UH-1H
- Type certificates
- R00007DE, H11SW, H15NM, R00004RC, R00005SE, H7SO, H3SO, H12NM, H12NM, H13WE, H12NM, H6SO, H7NE, H7NE, R00010SE
- On this site
- 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 20, 2026.