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

ST00728LA

Installation of Infant Transport Module. Held by Lifeport LLC, which holds 88 approved modifications in all. Last revised May 10, 2019. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.
Models
Learjet 55B, Learjet 25C, Learjet 24, Learjet 24A, Learjet 24B, Learjet 24B-A, Learjet 24C, Learjet 24D, Learjet 24D-A, Learjet 24E, Learjet 24F, Learjet 24F-A, Learjet 25, Learjet 25A, Learjet 25B, Learjet 25D, Learjet 35, Learjet 55C, Learjet 55, Learjet 31, Learjet 31A, Learjet 36A, Learjet 25F, Learjet 36, Learjet 35A (C-21A)
Type certificates
A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE
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.