SA2091CE
Installation of flight inspection console on seat track, structural provisions only. Held by Butler National Corporation,Avcon Div, which holds 12 approved modifications in all. Last revised March 22, 1985. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 402
- Type certificate
- A7CE
- On this site
- Cessna 402 174 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 19, 2026.