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

SA1690GL

Install air ambulance conversion. Held by Fargo Jet Center, which holds 18 approved modifications in all. Last revised December 21, 2001. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.
Models
MU-2B-26, MU-2B-36A, MU-2B-40, MU-2B-60, MU-2B-35, MU-2B-26A, MU-2B-36
Type certificates
A10SW, A10SW, A10SW, A10SW, A10SW, A10SW, A10SW
On this site
Mitsubishi MU-2 177 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.