SR03474CH
Installation of Heli-Preheat Kit, p/n TSHB407-3083-115 for 115 volt application. Held by Hartzell Propeller INC., which holds 8 approved modifications in all. Last revised October 26, 2023. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bell Helicopter Textron Canada Limited
- Models
- 407
- Type certificate
- H2SW
- On this site
- Bell 407 985 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 5, 2026.