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

SA1538NM

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Cessna Model 500, Serial No. 0304 only. Installation of medical systems. Held by Sierra Industries LTD., which holds 94 approved modifications in all. Last revised July 31, 2017. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.
Models
500
Type certificate
A22CE
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 8, 2026.