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

SE01200LA

Installation of Pratt & Whitney R-2800 engine cylinder assemblies on altered P&WA R-1340 engine models. Held by Aircraft Cylinder & Turbine INC., which holds 2 approved modifications in all. Last revised September 10, 2001. System: engine.

What it applies to

Kind of product
Engine
Design holder
Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division
Models
Military R-1340 Series, Wasp R-1340-59, Wasp R-1340-61
Type certificates
TC 5E-2, E-142, E-129
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.