SA7193SW-D
Installation of S-TEC System 60 single axis automatic flight guidance system, Model ST-411. Held by S-Tec Corporation, which holds 1,083 approved modifications in all. Last revised February 24, 1989. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.
- Models
- Bee Dee M-5-235C, Bee Dee M-6-235, Bee Dee MX-7-235
- Type certificates
- 3A23, 3A23, 3A23
- 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 20, 2026.