ST04534NY
Installation and modification of Replacement of Dress Covers on Flight Attendants Seats. Held by Mhi Rj Aviation Ulc (Canada). Last revised September 14, 2020. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- MHI RJ Aviation ULC
- Models
- CL-600-2D24 (Regional Jet Series 900)
- Type certificate
- A21EA-1
- On this site
- Bombardier CL-600 Challenger and CRJ 1,657 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 8, 2026.