SR01611SE
Installation of a Supplemental Lighting System. Held by Aviation Specialties Unlimited INC., which holds 90 approved modifications in all. Last revised June 10, 2022. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD); Airbus Helicopters Deutschland GmbH (AHD)
- Models
- MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, MBB-BK 117 C-1, MBB-BK 117 C-2, MBB-BK 117 D-2, MBB-BK 117 D-3
- Type certificates
- H13EU, H13EU, H13EU, H13EU, H13EU, H13EU, H13EU, H13EU
- On this site
- Airbus Helicopters MBB-BK 117 C-1 9 registered
Airbus Helicopters MBB-BK 117 C-2 158 registered
Airbus Helicopters MBB-BK 117 D-2 21 registered
Airbus Helicopters MBB-BK117 D-3 93 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 8, 2026.