The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

SA01033WI

Replacement of original outboard main landing gear doors with a one-piece monolithic machined metal door. Held by Machining Programming Manufacturing INC, which holds 2 approved modifications in all. Last revised January 22, 2008. 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; 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; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
35-33, 35-A33, 35-B33, 35-C33, 35-C33A, 36, 45 (Military YT-34), 56TC, 58, 58A, 95-55, 95-A55, 95-B55, 95-B55A, 95-B55B, 95-C55, 95-C55A, 95, A36, A36TC, A45 (Military T-34A; B-45), A56TC, B36TC, B95, B95A, D45 (Military T-34B), D55, D55A, D95A, E33, E33A, E33C, E55, E55A, E95, F33, F33A, F33C, G33, 45 (Military YT-34), A45 (Military T-34A; B-45), D45 (Military T-34B), T-34C
Type certificates
3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 5A3, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A15, 3A15, 5A3, 3A16, 3A15, 3A16, 3A16, 5A3, 3A16, 3A16, 3A16, 3A15, 3A15, 3A15, 3A16, 3A16, 3A16, 3A15, 3A15, 3A15, 3A15, 5A3, 5A3, 5A3, A26CE
On this site
Beechcraft 35 Bonanza and Debonair 1,078 registered
Beechcraft 58 Baron 1,295 registered
Beechcraft 95 Travel Air and Baron 55 1,245 registered
Beechcraft A36 Bonanza 2,530 registered
Beechcraft B36 Bonanza 308 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 14, 2026.