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

SA822EA

Eligible for increase in gross weight to 2600 lb. with 200 h.p. engine installed per STC SA631CE. Aerofab, Inc. Supplement No. 4, approved May 26, 1970, to Lake LA-4 Flight Manual, is required. Held by Revo INC, which holds 13 approved modifications in all. Last revised September 30, 2004. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
REVO Incorporated
Models
Lake LA-4
Type certificate
1A13
On this site
Consolidated Aeronautics Inc. LAKE LA-4 15 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.