SR09568RC
Installation of Tech Tool Plastics replacement doors with full view windows. Held by Tech-Tool Plastics INC, which holds 38 approved modifications in all. Last revised September 1, 2017. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Robinson Helicopter Company; Robinson Helicopter Company
- Models
- R44, R44 II
- Type certificates
- H11NM, H11NM
- On this site
- Robinson R44 1,933 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 8, 2026.