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

SP00662SE

Installation of SMR electrothermal propeller deicer P/N SMR3017-1W as a replacement for BF Goodrich electrothermal propeller deicer P/N 4E3017-1. Held by Smr Technologies, which holds 34 approved modifications in all. Last revised March 15, 2002. System: propeller.

What it applies to

Kind of product
Propeller
Design holder
Hartzell Propeller Inc.
Models
HC-E4A
Type certificate
P10NE
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 5, 2026.