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

SA00435SE

Installation of Concord 35RG battery, Rotax N3EY C.W. starter, Cessna part no W-R/RBM solenoid, Niehoff Part No. UN401 push button starter switch, stainless steel battery box, and starter circuit wiring and components. Installation of Scott 3200 steerable tailwheel, leaf spring, and tailwheet steering linkage chains and springs. Installation of Cleveland master brake cylinders Model 10-35, Cleveland part no 164-01700 brake discs, Cleveland Part No. 030-07500 brake calipers, and aluminum and braided stainless steel brake lines and fittings. Installation of Sensenitch W79CFL-60 propeller. Held by Miltner Harry, which holds 3 approved modifications in all. Last revised May 2, 1997. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Robertson Cliff c/o Gadbois Business Management
Models
D.H.82A Tiger Moth
Type certificate
A8EU
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.