SA3976SW-D
Install passenger seats at Type III overwing emergency exists. Held by American Airlines INC, which holds 377 approved modifications in all. Last revised June 8, 1993. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Fokker Services B.V.
- Models
- F.28 Mark 0100
- Type certificate
- A20EU
- 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 19, 2026.