ST02473LA
Installation of Cabin Interior Noise Reduction Kit. Held by Aircraft Technical Development INC. DBA Aerocon Engineering Company, which holds 29 approved modifications in all. Last revised September 6, 2013. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.
- Models
- DHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106
- Type certificates
- A13NM, A13NM, A13NM, A13NM
- On this site
- Bombardier DHC-8 Dash 8 and Q400 58 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 20, 2026.