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Approved modifications · supplemental type certificate · current · amended

SA1455WE

Installation of Brittain Industries Model CSA-1 Flight Control System. Held by Brittain Industries INC, which holds 36 approved modifications in all. Last revised September 12, 1979. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
Models
150, 170, 170A, 170B, 172, 172A, 172B, 172C, 175, 175A, 175B, 175C, 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 182, 182A, 182B, 182C, 182D, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F
Type certificates
3A19, A-799, A-799, A-799, 3A12, 3A12, 3A12, 3A12, 3A17, 3A17, 3A17, 3A17, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 3A13, 3A13, 3A13, 3A13, 3A13, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24
On this site
Cessna 150 7,993 registered
Cessna 170 2,085 registered
Cessna 172 Skyhawk 20,676 registered
Cessna 175 Skylark 925 registered
Cessna 180 Skywagon 2,605 registered
Cessna 182 Skylane 11,831 registered
Cessna 185 Skywagon 227 registered
Cessna A185 Skywagon 1,372 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.