ST10609SC
Installation of upgraded Honeywell Enhanced Ground Proximity Warning System to include Runway Awareness and Advisory System (RAAS) software. Held by L2 Aviation, which holds 26 approved modifications in all. Last revised March 11, 2025. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
- Models
- 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series
- Type certificates
- A2NM, A2NM, A2NM, A2NM
- On this site
- Boeing 757 440 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.