SR01755SE
Installation of the Main Rotor Head Modification. Held by Croman Corporation, which holds 42 approved modifications in all. Last revised April 21, 2016. System: rotorcraft systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Carson Helicopters Inc.; Croman Corporation
- Models
- SH-3H, SH-3H
- Type certificates
- R00014LA, R00004SE
- On this site
- Croman Corp SH-3 5 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.