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

SA2334NM

Installation of Goodyear 29x11.0-10 10 ply tires (with tubes) on the main landing gear. Held by Aero Twin, INC, which holds 30 approved modifications in all. Last revised March 21, 1986. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company
Models
208, 208A
Type certificates
A37CE, A37CE
On this site
Cessna 208 Caravan 1,018 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.