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

ST04736NY

True Blue TS28 Emergency Battery Power Supply Replacement. Held by Aerospace Design and Compliance LLC. Last revised September 11, 2024. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
500, 550, S550, 560, 680, 680A, 700
Type certificates
A22CE, A22CE, A22CE, A22CE, T00012WI, T00012WI, T00015WI
On this site
Cessna 560 Citation V, Ultra, Encore and Excel 1,341 registered
Cessna 680 Citation Sovereign and Latitude 695 registered
Cessna S550 94 registered
Textron Aviation Inc 700 174 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 7, 2026.