SG4-1411
Ceconite 103 covering of glider. Held by Cooper Engineering Corporation, which holds 123 approved modifications in all. Last revised January 1, 1960. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Laister-Kauffmann Aircraft Corporation; Pratt Read & Co. Inc.; Pratt Read & Co. Inc.; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation
- Models
- LK-10A (Army TG-4A), PR-G1 (Navy LNE-1), PR-G1 (Army TG-32), SGU 2-22CK, SGS 2-8A
- Type certificates
- G-15, GTC 12, GTC 12, G-18, GTC 5
- On this site
- Laister-Kauffman LK-10 12 registered
Schweizer SGS 2 gliders (2-33 and 2-32) 275 registered
Schweizer SGU 2 74 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.