SA1213NW
Installation of a Franklin 6AS-350-A or A1 engine, Rajay Model 325E10 turbocharger, McCauley 2A34C22-N/84S-4, -6, or -8; or a Hartzell HC-C2YF-1BF/F8459A-4 to -8 propeller, and associated systems. Held by Herning Benjamin N.. Last revised July 24, 2007. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.
- Models
- M-4-220C, M-4-220S, M-4-220T
- Type certificates
- 3A23, 3A23, 3A23
- On this site
- Maule M-4 207 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.