ST412CH
Installation of MAPCO Model 1144. Held by Midwest Aircraft Products, which holds 5 approved modifications in all. Last revised September 15, 1995. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Embraer - Empresa Brasileira de Aeronautica S.A.; Embraer - Empresa Brasileira de Aeronautica S.A.; Embraer - Empresa Brasileira de Aeronautica S.A.
- Models
- EMB-120RT, EMB-120ER, EMB-120
- Type certificates
- A31SO, A31SO, A31SO
- On this site
- Embraer EMB-120 40 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 7, 2026.