SH1871CE
Modification of electrical power distribution system and addition of A.C. electrical system. Held by Rockwell Collins INC, which holds 359 approved modifications in all. Last revised January 20, 1989. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Eurocopter France; Eurocopter France
- Models
- AS355F, AS355F1
- Type certificates
- H11EU, H11EU
- On this site
- Aerospatiale AS-355 23 registered
Airbus Helicopters AS355 TwinStar 6 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.