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

SA2995SO

Installation of a Concorde sealed lead acid battery. Held by Concorde Battery Corporation, which holds 60 approved modifications in all. Last revised March 2, 1992. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
British Aerospace (Scotland)
Models
Jetstream Model 3201
Type certificate
A56EU
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 7, 2026.