SA00557AT
Installation of carbon steel brake discs. Held by Aviation Products, INC, which holds 64 approved modifications in all. Last revised January 24, 1995. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- P35, N35, M35, K35, J35, H35, 95-B55, B95A, B95, 95-C55A, 95-C55, 95-B55A, E95, D95A, 95-B55B (T-42A), 95-55, A45 (B-45), 45 (YT-34), D45 (T34B), A45 (T-34A), F35, 35R, 35, G35, E35, D35, A35, B35, C35
- Type certificates
- 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 5A3, 5A3, 5A3, 5A3, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A-777
- On this site
- Beechcraft 95 Travel Air and Baron 55 1,244 registered
Beechcraft A45 167 registered
Beechcraft D-45 75 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 22, 2026.