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

SA646CE

Install wing and tail pneumatic deice kit 702A on 401/402 aircraft(S/N 0135 and above), kit 702B on414 aircraft and kit 702C on 401/402 aircraft (S/N 0001 through 0134 only). Held by Airborne Manufacturing CO, which holds 4 approved modifications in all. Last revised August 26, 1976. System: heating, ice protection and utility systems.

What it applies to

Kind of product
Aircraft
Design holder
The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
Models
402B, 401, 401A, 401B, 402A, 414, 402
Type certificates
A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE
On this site
Cessna 401 51 registered
Cessna 402 174 registered
Cessna 414 Chancellor 605 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 20, 2026.