ST01969WI
Operation of Air Operable Baggage Door at 25,000 ft. Held by Bighorn Airways INC., which holds 2 approved modifications in all. Last revised February 20, 2024. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited
- Models
- DHC-8-100 Series, DHC-8-200 Series
- Type certificates
- A13NM, A13NM
- 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.