SR04228NY
Installation of Garmin HTAWS (Helicopter Terrain Awareness Warning System). Held by Maxcraft Avionics LTD. (Canada), which holds 33 approved modifications in all. Last revised September 28, 2018. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH; Airbus Helicopters Deutschland GmbH
- Models
- EC135 P1, EC135 P2, EC135 P2+, EC135 T1, EC135 T2, EC135 T2+, EC135P3, EC135T3
- Type certificates
- H88EU, H88EU, H88EU, H88EU, H88EU, H88EU, H88EU, H88EU
- On this site
- Airbus Helicopters EC-135 now H135 397 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 7, 2026.