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

SA1511SO

Remove the 12 gallon fuselage fuel tank and install an 18 gallon fuel tank in the right wing. Held by Swallows of Atlanta INC. Last revised April 21, 2003. System: fuel system.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.
Models
PA-16
Type certificate
1A1
On this site
Piper PA-16 Clipper 276 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.