SA933EA
Installation of wing struts modified to include Wings With Springs Model 300 hydraulic- pneumatic shock absorbers and associated airframe modifications. Held by Wings With Springs, INC, which holds 2 approved modifications in all. Last revised June 14, 1983. 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
- Models
- 182E, 182F, 182G
- Type certificates
- 3A13, 3A13, 3A13
- On this site
- Cessna 182 Skylane 11,831 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.