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

SA01956SE

ONE ONLY STC, SN 5-397: Installation of the following: Installation of the following: PA-12 Electrical Pane, P/N 10177-00; Left and Right PA-20/22 Stabilizers, P/N 12647-000; Left and Right PA-20/22 Elevators, P/N 12649-000, Left PA-12 Wing Assembly P/N 14766-02; Right PA-12 Wing Assembly, P/N 14766-01; Left and Right Front Wing Lift Struts P/N U85552-002; Left and Right Rear Wing Lift Struts P/N U85553-002;Wag Aero Left Main Fuel Tank P/N E451-002; Wag Aero Right Main Fuel Tank P/N E451-001; Header Tank P/N 3169-1;Fuel Firewall Shutoff Valve P/N 05-00848; Left and Right Fuel Valves P/N 701-4F4F-4; Left and Right Fuel Caps P/N 60750-002; Left Butt Rib P/N U1235-00; Right Butt Rib P/N U1235-01; Left and Right Fuel Gauges P/N M311-000; and Cleveland Wheel and Brake Kit Number 199-71,. Held by Joel A. Marketello. Last revised January 9, 2009. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
FS 2001 Corp.
Models
J5A (Army L-4F)
Type certificate
A-725
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.