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

SA03389NY

Installation and maintenance of the O&N Aircraft Modifications bleed air-heated engine inlet (part #4505-1) replacing existing electronically-heated engine inlet. Held by Griggs Aircraft Refinishing LLC, which holds 20 approved modifications in all. Last revised January 13, 2017. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Beechcraft Corporation; Beechcraft Corporation
Models
A36, A36TC
Type certificates
3A15, 3A15
On this site
Beechcraft A36 Bonanza 2,530 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 12, 2026.