SA2368CE
Installation of plywood covering on the bottom of the wing center section. Held by Great Lakes Aircraft Company LLC. Last revised January 29, 2021. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- WACO Classic Aircraft Corporation; WACO Classic Aircraft Corporation; WACO Classic Aircraft Corporation
- Models
- 2T-1A, 2T-1A-1, 2T-1A-2
- Type certificates
- A18EA, A18EA, A18EA
- On this site
- Great Lakes 2 168 registered
Waco Classic Aircraft Corp 2 20 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 20, 2026.