SH773NE
Installation of exhaust ejector Sikorsky P/N 76305-07501 and exhaust duct assembly Sikorsky P/N 76305-07500-042 repaired and modified. Held by Helicopter Support INC Services Div, which holds 13 approved modifications in all. Last revised January 30, 2004. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sikorsky Aircraft Corporation
- Models
- S-76B
- Type certificate
- H1NE
- On this site
- Sikorsky Aircraft Corp S-76 34 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.