SA3267WE
Modification of aileron control system by addition of aileron centering spring and installation of Pathfinder autopilot systems and/or pitch trim systems. Held by Astronautics Corporation of America, which holds 43 approved modifications in all. Last revised September 30, 1998. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bellanca Aircraft Corporation; Bellanca Aircraft Corporation; Bellanca Aircraft Corporation
- Models
- 17-30A, 17-31A, 17-31ATC
- Type certificates
- A18CE, A18CE, A18CE
- On this site
- Bellanca 17 Viking 628 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 12, 2026.