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

SA1NE

Installation of McCauley1B90/ECM7151 propeller on aircraft equipped with Continental C85-12FHJ engine in accordance with Butterworth Report 1000 dated 9/13/72. Held by Butterworth Gerald N. Last revised November 15, 1972. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Superior Aircraft Company
Models
Culver V
Type certificate
A-778
On this site
Superior CULVER V 7 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.