SA2109SO
Installation of Teledyne Continental Motors Model IO-470K engine in accordance with Colemill Enterprises Installation Instructions for Modification of Cessna Model 305-A-C-D-F Revised April 24, 1987 and Colemill Enterprises Drawing No. 3000 Revision A dated May 6, 1987. Held by Mike Jones Aircraft Sales INC., which holds 19 approved modifications in all. Last revised February 10, 2011. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.
- Models
- 305A, 305C, 305D, 305F
- Type certificates
- 5A5, 5A5, 5A5, 5A5
- 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 12, 2026.