SH1363SO
Provisions to accommodate special equipment not yet defined, incor- porates modifications to the left and right hand sliding doors, airframe floor structure and electrical system additions to control the special equipment. Held by Sikorsky Aircraft, which holds 147 approved modifications in all. Last revised August 13, 1982. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sikorsky Aircraft Corporation
- Models
- S-76A
- Type certificate
- H1NE
- On this site
- Sikorsky S-76 141 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 22, 2026.