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

SA5923NM

Removable side engine cowl modification. Held by Jennings W P & Assoc, which holds 9 approved modifications in all. Last revised February 23, 1993. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Hawker Beechcraft Corporation
Models
V35A
Type certificate
3A15
On this site
Beechcraft V35 Bonanza 1,661 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 7, 2026.