SA1977SO
Installation of Appalachian Accessories stainless steel brake discs P/N 73-47. Held by Appalachian Accessories, which holds 45 approved modifications in all. Last revised January 14, 1987. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated
- Models
- Lake LA-4, Lake LA-4P, Colonial C-2, Lake LA-4-200, Lake LA-4A, Colonial C-1
- Type certificates
- 1A13, 1A13, 1A13, 1A13, 1A13, 1A13
- On this site
- Consolidated Aeronautics Inc. LAKE LA-4 15 registered
Consolidated Aeronautics Inc. LAKE LA-4-200 140 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 12, 2026.