SA2448SW
Extension of baggage area to F.S. 308, encompassing re-routing of powerplant and aileron control cables in baggage compartment area. Held by Combs Harry B JR, which holds 2 approved modifications in all. Last revised April 7, 1977. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Twin Commander Aircraft LLC
- Models
- 680-FL
- Type certificate
- 2A4
- On this site
- Aero Commander 680 51 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 22, 2026.