SA00223BO
Descriptive data pertaining to this modification is considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Piper Model J-3, Serial Number 2057. Installation of a Continental A-75-8 engine and Sensenich Model W70DK-40 wood propeller, and components for a 1200 lb. maximum weight. Held by Babcock Paul G. Last revised December 21, 2005. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.
- Models
- J-3
- Type certificate
- ATC 660
- On this site
- Piper J-3 Cub 3,805 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 21, 2026.