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

SA02115AK

Fabrication and installation of 30.5 gallon wing fuel tank sight gages. Held by F Atlee Dodge Aircraft Service, which holds 101 approved modifications in all. Last revised January 20, 2004. System: fuel system.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
Models
PA-18-150, PA-18A-150, PA-18AS-150, PA-18S-150, PA-22-150, PA-22-160, PA-12, PA-12S, PA-14
Type certificates
1A2, 1A2, 1A2, 1A2, 1A6, 1A6, A-780, A-780, A-797
On this site
Piper/Cub Crafters PA-18 46 registered
Piper PA-12 Super Cruiser 1,247 registered
Piper PA-14 100 registered
Piper PA-18 Super Cub 3,621 registered
Piper PA-22 Tri-Pacer and Colt 2,940 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 8, 2026.