SA00196AT
Installation of Appalachian Accessories carbon steel brake discs that have melonite surface treatment, P/N AA-17. Held by Aviation Products, INC, which holds 64 approved modifications in all. Last revised November 14, 1994. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- American Champion Aircraft Corp.; The Cessna Aircraft Company; The Cessna Aircraft Company; The New Piper Aircraft Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.
- Models
- 7ACA, 150E, 150D, PA-38-112, S-2, S-2B, S-2A, S-1T, S-1S, S-2S
- Type certificates
- A-759, 3A19, 3A19, A18SO, A8SO, A8SO, A8SO, A8SO, A8SO, A8SO
- On this site
- American Champion Aircraft 7 Citabria and Champ 429 registered
Cessna 150 7,993 registered
Piper PA-38 Tomahawk 442 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 21, 2026.