SA943NW
Installation of Pacific Propellers EAC-12D40-425/AG-100-4S or EAC-22D40/AG-200-4S propeller assemblies using P&W 600 hp R-1340-S1H series engines. Held by Pacific Propeller International LLC, which holds 27 approved modifications in all. Last revised March 25, 2004. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Air Tractor Inc.
- Models
- AT-301
- Type certificate
- A9SW
- On this site
- Air Tractor Inc AT-301 84 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 7, 2026.