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

SA01044DE

This STC approves the Finnoff Aviation Products installation of the TB44 advanced lithium-ion battery manufactured by True Blue Power in the make and model listed above (Single Battery Configuration). Held by Finnoff Aviation Products, which holds 2 approved modifications in all. Last revised September 20, 2022. System: electric propulsion.

What it applies to

Kind of product
Aircraft
Design holder
Pilatus Aircraft Limited; Pilatus Aircraft Limited; Pilatus Aircraft Limited; Pilatus Aircraft Limited
Models
PC-12, PC-12/45, PC-12/47, PC-12/47E
Type certificates
A78EU, A78EU, A78EU, A78EU
On this site
Pilatus PC-12 1,442 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.