SA1680SO
Installation of an adjustable nine-inch trim tab on the left aileron. Held by Aero Trim, INC, which holds 26 approved modifications in all. Last revised September 20, 1984. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- B23, A23-24, C23, C24R, B24R, 19A, A24R, A24, A23-19, A23A, A23, 23, B19, M19A
- Type certificates
- A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE
- On this site
- Beechcraft A23 329 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 21, 2026.