SR00143DE
Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003. Held by Midwest Aerospace Tc LLC, which holds 11 approved modifications in all. Last revised February 8, 2023. System: rotorcraft systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Arrow Falcon Exporters Inc.; California Department of Forestry; Global Helicopter Technology Inc.; Hagglund Helicopters LLC; Northwest Rotorcraft LLC; Overseas Aircraft Support Inc; Rotorcraft Development Corporation; Southwest Florida Aviation International; Tamarack Helicopters Inc.
- Models
- UH-1H, UH-1F, UH-1H, UH-1H, UH-1H, UH-1H, UH-1H, UH-1H, UH-1F
- Type certificates
- R00007DE, H2NM, R00002RC, H15NM, R00005SE, H7SO, H13WE, H6SO, H7NE
- 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 7, 2026.