ST10355SC
Installation of software upgrade to -219 -219 on Honeywell Enhanced Ground Proximity Warning System (EGPWS) for Runway Awareness Advisory System activation (RAAS). Held by West Star Aviation, which holds 63 approved modifications in all. Last revised October 23, 2006. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company
- Models
- BAe.125 Series 800A
- Type certificate
- A3EU
- On this site
- British Aerospace BAE 125 76 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 8, 2026.