SA00191AT
Installation of carbon steel brake discs that have melonite surface treatment. 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.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; The Cessna Aircraft Company; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; Univair Aircraft Corporation; Univair Aircraft Corporation
- Models
- 7KCAB, 7GCBC, 7GCAA, 7ECA, 7ACA, 8KCAB, 150C, PA-22-108, PA-28-150, PA-28-160, PA-28-140, PA-28-180, 108-5, 108-3
- Type certificates
- A-759, A-759, A-759, A-759, A-759, A21CE, 3A19, 1A6, 2A13, 2A13, 2A13, 2A13, A-767, A-767
- On this site
- American Champion Aircraft 7 Citabria and Champ 429 registered
American Champion Aircraft 8 Decathlon and Scout 669 registered
Cessna 150 7,993 registered
Piper PA-22 Tri-Pacer and Colt 2,942 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,636 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.