ST02459AT
Installation of a passenger cabin seating arrangment of 12 first class and 100 tourist class. Held by Aero Design Services, INC, which holds 22 approved modifications in all. Last revised February 15, 2002. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- McDonnell Douglas Corporation
- Models
- DC-9-87 (MD-87)
- Type certificate
- A6WE
- On this site
- Mcdonnell Douglas DC-9 93 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.