SA1087GL
Installation of a Shadin Co. fuel flow indicating system. Held by Shadin Avionics, which holds 87 approved modifications in all. Last revised June 8, 2006. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- 172RG, R172K
- Type certificates
- 3A17, 3A17
- On this site
- Cessna 172 Skyhawk 20,669 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 5, 2026.