SA461NW
Installation of a Continental IO-520-D engine, McCauley D2A34C58-LMN/S-90AT-B and/or D3A32C90/82NC-2 propeller, engine mount and associated systems. Held by Knopp Steve and Norma, which holds 2 approved modifications in all. Last revised July 11, 1991. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
- Models
- 182H, 182J, 182K, 182L, 182M, 182N, 182P
- Type certificates
- 3A13, 3A13, 3A13, 3A13, 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.