SA00274AT
Installation of a Teledyne Continental model IO-550L engine and a McCauley model D3A34C402/90DFA-10 or a Hartzell model PHC-J3FY-1RF/F7691 propeller with associated spinner. Held by John Jewell Aircraft INC, which holds 9 approved modifications in all. Last revised January 14, 2009. System: propeller.
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
- Models
- 210K, 210L, 210M, 210N
- Type certificates
- 3A21, 3A21, 3A21, 3A21
- On this site
- Cessna 210 Centurion 1,527 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 9, 2026.