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

SA4-1200

Delco-Remy generator 1101879 and regulator 1118384. Held by Universal Aircraft Ind, which holds 3 approved modifications in all. Last revised January 1, 1960. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
Booth Lee F. dba Taylorcraft Aerospace; Booth Lee F. dba Taylorcraft Aerospace; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; Miscellaneous; Swift Museum Foundation Inc.; Swift Museum Foundation Inc.
Models
19, BC Series, 140A, 120, 140, Miscellaneous, GC-1B, GC-1A
Type certificates
1A9, A-696, 5A2, A-768, A-768, Miscellaneous, A-766, A-766
On this site
Cessna 120 660 registered
Cessna 140 1,839 registered
Taylorcraft Aviation Corp 19 18 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 22, 2026.