SR02761LA
Installation of UH-1H composite main rotor blades on the UH-1B helicopters. Held by Northern X-Treme Helicopters. Last revised March 22, 2022. System: rotorcraft systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- International Helicopters Inc.; Overseas Aircraft Support Inc.; Richards Heavylift Helo Inc.; Rotorcraft Development Corporation; Rotorcraft Development Corporation; San Joaquin Helicopters
- Models
- UH-1B, UH-1B, UH-1B, UH-1B, UH-1B, UH-1B
- Type certificates
- H5SO, H7SO, H3SO, H13WE, H3NM, H1RM
- 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.