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

SA1809WE

Installation of one twelve-gallon auxiliary fuel tank in each outboard wing panel. Held by Flint Aero INC, which holds 18 approved modifications in all. Last revised February 16, 2007. System: fuel system.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
Models
150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M, 152, A150K, A150L, A150M, A152, F150G, F150H, F150J, F150K, F150L, F150M, F152, FA150L, FA152, FRA150L
Type certificates
3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, 3A19, A13EU, A13EU, A13EU, A13EU, A13EU, A13EU, A13EU, A13EU, A13EU, A13EU
On this site
Cessna 150 7,995 registered
Cessna 152 1,637 registered
Cessna A150 232 registered
Cessna A152 48 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 13, 2026.