Schweizer Aircraft Corporation

2006 MODEL 333 HELICOPTER

OVERHAUL AND RETIREMENT SCHEDULE

COMPONENTS WITH
SCHEDULED OVERHAUL TIMES

OVERHAUL
INTERVAL HOURS

Main Rotor Transmission
Tail Rotor Transmission
Engine
      Compressor
      Turbine-mini
      Turbine
      Fuel Pump
      Fuel Control
      Power Governor
      Fuel Nozzle
      Bleed Valve
      Starter/Generator

2,200
3,000

3,500
1,750
3,500
4,000
2,500
2,000
2,500
1,500
1,000

COMPONENTS WITH
MANDATORY RETIREMENT TIMES

RETIREMENT
LIFE HOURS

Aft Fuselage Splice Fitting
Engine Drive Adapter
Horizontal Stabilizer Assembly
KAFLEX Drive Shaft
Main Rotor Blade
Main Rotor Hub Assembly
Main Rotor Shaft Assembly
Main Rotor Elastomeric Dampers
Main Rotor Mast
Main Rotor Pitch Bearing Shaft
Main Rotor Thrust Bearing
Main Rotor Transmission Carrier
Main Rotor Transmission Input Pinion
Tailboom Assembly
Tail Rotor Drive Shaft
Tail Rotor Blade
Tail Rotor Blade Retention Straps
Vertical Tail
Vertical Tail Attach Fittings
Belt Drive System Overhaul
      Upper Ball Bearings, Belt Drive Frame Assembly
      Lower Ball Bearings, Belt Drive Frame Assembly
      Idler Pulley Bearings, Belt Drive Assembly

  5,200
  6,000
  8,500
  7,600
  5,200
  7,500
  1,600
  6,000
13,500
  4,000
  2,000
  4,400
  4,400
  5,200
18,600
12,000
  5,100
13,000
  5,200

  2,400
  2,400
  2,400

Reference:  Type Certificate Data Sheet #4H12; Revision 26