SA4026NM
Installation of two Hartzell HC-B3TN-5 (E)/T10178B-13Q propellers on Cessna 441 airplanes equipped with Garrett engine Models TPE-331-B-401S, 402S, 403S or 404S. Held by Aero Air, LLC, which holds 12 approved modifications in all. Last revised October 6, 1987. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 441
- Type certificate
- A28CE
- On this site
- Cessna 441 Conquest II 172 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 12, 2026.