SA1-426

Auxiliary seat in baggage compartment. Held by Waring Robert. Last revised October 25, 2001. System: cabin, seats and restraints.

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; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
Models: 172B, 172A, 172, 182, 175A, 175B, 175, 180A, 180, 170B, 170A, 170 Series
Type certificates: 3A12, 3A12, 3A12, 3A13, 3A17, 3A17, 3A17, 5A6, 5A6, A-799, A-799, A-799
On this site: Cessna 170 2,085 registered
Cessna 172 Skyhawk 20,675 registered
Cessna 175 Skylark 925 registered
Cessna 180 Skywagon 2,605 registered
Cessna 182 Skylane 11,832 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 22, 2026.