SA00462AT
Replacement of Appalachian stainless steel brake discs P/N 75-23 with Appalachian steel brake disk part number AA-47. Held by Aviation Products, INC, which holds 64 approved modifications in all. Last revised December 7, 1994. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Alliance Aircraft Group LLC; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Raytheon Aircraft Company; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; STOL Aircraft Corporation
- Models
- H-295 (USAF U-10D), 210-5A (205A), 210-5 (205), 185 Series, 180 Series, 336, 206 Series, Bee Dee M-6-235, Bee Dee M-5-235C, 35-B33, Lake LA-4-200, Lake LA-4A, Lake LA-4, Colonial C-2, Colonial C-1, Colonial Lake Model 250, Lake LA-4P, UC-1 (Twin-Bee)
- Type certificates
- 1A8, 3A21, 3A21, 3A24, 5A6, A2CE, A4CE, 3A23, 3A23, 3A15, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, A6EA
- On this site
- Beechcraft 35 Bonanza and Debonair 1,077 registered
Cessna 180 Skywagon 2,605 registered
Cessna 185 Skywagon 227 registered
Cessna 206 Stationair 213 registered
Cessna 210 Centurion 1,528 registered
Cessna 336 35 registered
Consolidated Aeronautics Inc. LAKE LA-4 15 registered
Consolidated Aeronautics Inc. LAKE LA-4-200 139 registered
Helio H-295 54 registered
Stol UC-1 8 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.