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

SA1926CE-D

Installation of Collins APS-65 Autopilot Systems and Collins EHSI-74/ADI-84A Flight Instrument Systems. (SA227-AC (C-26A) METRO III). Held by Rockwell Collins INC, which holds 359 approved modifications in all. Last revised October 31, 2008. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Fairchild Aircraft Corporation; Fairchild Aircraft Corporation
Models
SA227-AC (C-26A), SA227-BC (C-26A)
Type certificates
A8SW, A8SW
On this site
Fairchild SA227 86 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 20, 2026.