SH131NW
Installation of General Electric CT58-140-1 engines. (107-II S/N 2, 4, 5, 6, 101, 107, 108, 2002, 2003). Held by Columbia Helicopters INC, which holds 66 approved modifications in all. Last revised December 16, 1991. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Boeing Defense & Space Group
- Models
- 107-II
- Type certificate
- 1H16
- On this site
- Boeing-Vertol 107 7 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.