• Avia Propeller LogoAvia Propeller


  • last update December 14, 2023
STC Air Tractor AT-401, AT-502, AT-502B

STC - Data


  • FAA STC: SA01281CH (issued August 4, 2000)

  • STC Holder:
  • Johnson Airspray, Inc.
  • Airport Road
  • P.O. Box 27
  • Argyle, MN 56713

  • Applicable Aircraft: Air Tractor AT-401, AT-502, AT-502B
  • Engines: Walter M601E-11
  • Propeller: V510, V510AG, V508E-AG (AT-401)
    V508E-AG (AT-502, AT-502B)


  • Advantages:
  • Our propellers bring you the unique solution of removable blades. Shipping and storage of such a propeller is much easier and cheaper compared to the fixed blade option.
  • Our blades are made of durable high quality aluminum alloy designed for propeller blades.
  • No propeller ADs
  • TBO 3500 hours (V510 propeller) or 6 years, whatever comes first, for low maintenance costs
  • No intermediate inspections on an agriculture installation
  • No intermediate inspections are needed between the TBO which requires the propeller removal
  • Reduced cost for spare parts, like blades and lower overhaul costs, for the complete propeller assembly
  • No rpm restriction for the complete operational range