SA01246AT-D
Installation and operation of a Bendix King EFS 50 electronic flight instrument system. Held by Stevens Aviation INC, which holds 20 approved modifications in all. Last revised April 18, 1997. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Hawker Beechcraft Corporation
- Models
- E90
- Type certificate
- 3A20
- On this site
- Beechcraft E-90 King Air E90 146 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 13, 2026.