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

SA10691SC-D

Installation of interior furnishings, mission equipment, exterior radomes/fairings and antennas, and provisions for mission equipment. Held by L-3 Communications Integrated Systems LP, which holds 175 approved modifications in all. Last revised May 31, 2019. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.
Models
B300
Type certificate
A24CE
On this site
Beechcraft B300 King Air 350 784 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.