ST01486CH
Installation of a Honeywell Mark VI/VIII Enhanced Ground Proximity Warning System (EGPWS). Held by Elliott Aviation Technical Products, which holds 57 approved modifications in all. Last revised May 12, 2004. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- MU-300, 400, MU-300-10
- Type certificates
- A14SW, A16SW, A16SW
- On this site
- Beechcraft 400 Beechjet 311 registered
Mitsubishi MU-300 17 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.