SA1048NW
Installation of a Franklin 6A-335-B, 6A350-C1R or -C2 engine, McCauley 2A31C21/84S-4 to -8, 2A31C21/84S-4,-6,or-8, 2A34C22/84SF-4,-6,-8,-10, 2A34C201/90DA (88 inch to 76-inch range) or Hartzell HC-C2YF-1BF/F8459-4 to -8 and associated systems. Held by Kown Bruce, which holds 2 approved modifications in all. Last revised January 6, 2000. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 170A
- Type certificate
- A-799
- On this site
- Cessna 170 2,085 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.