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

SH2334SO

Installation of a cabin heater/defroster. Held by Schweizer Rsg LLC, which holds 7 approved modifications in all. Last revised November 20, 2020. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
Schweizer RSG LLC; Schweizer RSG LLC; Schweizer RSG LLC
Models
269A, 269B, 269C
Type certificates
4H12, 4H12, 4H12
On this site
Schweizer Rsg Llc 269 5 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.