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

SA787WE

Installation of turbosupercharged Lycoming IO-320-B1A, IO-320-C1A, LIO-320-B1A or LIO-320-C1A engines. Held by Talco Aviation, which holds 49 approved modifications in all. Last revised August 31, 2023. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
Models
PA-39, PA-30
Type certificates
A1EA, A1EA
On this site
Piper PA-30 Twin Comanche 879 registered
Piper PA-39 Twin Comanche C/R 82 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 5, 2026.