SA2917SO
Installation of CAS-81 TCAS II system. Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised January 19, 2022. System: instruments and avionics.
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
- Models
- DHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106
- Type certificates
- A13NM, A13NM, A13NM, A13NM
- On this site
- 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 20, 2026.