NMC-Wollard CMPS-170 Narrow Body Aircraft Passenger Stairs

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The NMC-Wollard CMPS-170 is a narrow-body aircraft passenger stair that will reach heights from 77.5 up to 170.5 inches. These units can be configured for gas, diesel, LPG, or be electric-powered zero-emission. 

This extended reach mobile stair services doorsill heights from 77.5 inches (1.97 meters) up to 170.5 inches (4.3 meters) in a highly maneuverable unit. The CMPS-170 meets SAE ARP 836 and 1247. A tubular wrap-around steel frame is lightweight, fuel-efficient, and agile for crowded ramp environments. The easy-to-position stair unit features an unobstructed operator’s station allowing clear visibility of the aircraft doorsill during an approach to the aircraft.

Option Add-on - Integrated IATA 913 compliant No Touch collision avoidance systems ensures aircraft integrity. The 3D infrared sensor system remains at optimal performance in all weather conditions.


  • Zero-emission electric power option available
  • Low emission Stage V and Tier 4 Final diesel power
  • EPA approved gasoline or LP fuel
  • Factory new automatic transmission
  • Lightweight, fuel-efficient, impact deflecting steel frame
  • LED lighting 
  • Safety
    • Back up alarm
    • Horn
    • Anti-restart ignition switch
    • Engine safety shutdown (engine dependent; low oil pressure, high temperature)
    • Slip-resistant treads with LED lighting for night visibility
    • Four-point hydraulic stabilizers
    • Stable - able to operate in winds up to 90 mph (145 kph)
    • Platform rated for 1,900 pounds (863 kilograms)


General Information
Part #CMPS-170
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