ST01181SE
Installation of increased security cockpit door. Held by Cascade Aviation Services INC, which holds 25 approved modifications in all. Last revised November 28, 2016. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Fairchild Dornier GmbH; Fairchild Dornier GmbH
- Models
- 328-100, 328-300
- Type certificates
- A45NM, A55NM
- On this site
- Dornier Luftfahrt Gmbh 328 20 registered
Dornier 328 7 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.