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

SA1-636

Install 300 Series dry vacuum pump conversion kits. Held by Parker Hannifin CORP, which holds 44 approved modifications in all. Last revised October 30, 1985. System: heating, ice protection and utility systems.

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
Models
P35, 35-B33, 35-C33, 35-C33A, H35, J35, K35, N35, S35, 35-33, 35-A33, M35
Type certificates
3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15
On this site
Beechcraft 35 Bonanza and Debonair 1,078 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 8, 2026.