SA3285SO
Installation of engine cowling and firewall fasteners. (172 S/N 54893 THRU 76673) (R172 SERIES S/N 2000 THRU 3454). Held by Skybolt Aeromotive CORP, which holds 6 approved modifications in all. Last revised August 29, 2001. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- 172, R172 Series
- Type certificates
- 3A12, 3A17
- On this site
- Cessna 172 Skyhawk 20,676 registered
Cessna R172 Hawk XP 758 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.