SA09432AC-D
Installation of S-TEC system 30 two axis automatic flight guidance system, Model ST-871. Held by S-Tec Corporation, which holds 1,083 approved modifications in all. Last revised February 2, 2001. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Estumkeda Ltd. dba Micco Aircraft Company; Estumkeda Ltd. dba Micco Aircraft Company
- Models
- MAC-145A, MAC-145B
- Type certificates
- 3A1, 3A1
- On this site
- Estumkeda Ltd Dba Micco Acft MAC-145 15 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.