SA533SO
Installation of hull booster plates, booster fouler and stiffener plate, S/N 246 and subsequent. Held by Lawrence H Bradway, which holds 2 approved modifications in all. Last revised May 22, 1973. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated
- Models
- Lake LA-4A, Lake LA-4-200, Lake LA-4P, Lake LA-4
- Type certificates
- 1A13, 1A13, 1A13, 1A13
- On this site
- Consolidated Aeronautics Inc. LAKE LA-4 15 registered
Consolidated Aeronautics Inc. LAKE LA-4-200 139 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.