The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

ST03438CH

Activation of Smart Runway and Smart Landing (SRSL) RAAS Functions for Honeywell Mark V-A Enhanced Ground Proximity Warning Systems (EGPWS). Held by Honeywell International INC., which holds 142 approved modifications in all. Last revised December 21, 2022. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
Models
777-200 Series, 777-200LR Series, 777-300 Series, 777-300ER Series, 777F Series
Type certificates
T00001SE, T00001SE, T00001SE, T00001SE, T00001SE
On this site
Boeing 777 359 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 5, 2026.