ST01226NY
Installation of Environmental Control System Performance Improvement Modification. Held by Cascade Aerospace INC. (Canada), which holds 27 approved modifications in all. Last revised August 6, 2020. System: heating, ice protection and utility systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited
- Models
- DHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, DHC-8-315
- Type certificates
- A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM
- On this site
- Boeing Of Canada/Dehav Div DHC-8 6 registered
Dehavilland DHC-8 28 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.