Schweizer Aircraft Corporation

2006 MODEL 300CBi HELICOPTER

OVERHAUL AND RETIREMENT SCHEDULE

COMPONENTS WITH
SCHEDULED OVERHAUL TIMES

OVERHAUL
INTERVAL HOURS

Engine (Lycoming)
Main Rotor Transmission
Tail Rotor Transmission
Belt Drive System Overhaul
      Upper Ball Bearings, Belt Drive Frame Assembly
      Lower Ball Bearings, Belt Drive Frame Assembly
      Idler Pulley Bearings, Belt Drive Assembly

2,200**
4,000
4,200

3,000
3,000
3,000

COMPONENTS WITH
MANDATORY RETIREMENT TIMES

RETIREMENT
LIFE HOURS

Main Transmission Ring Gear Carrier/Coupling
Main Transmission Pinion Assembly
Main Rotor Drive Shaft
Main Rotor Hub
Main Rotor Mast
Main Rotor Thrust Bearing
Main Rotor Pitch Bearing Shaft
Main Rotor Blade Assembly
Tailboom Assembly
Horizontal Stabilizer Assembly
Tail Rotor Drive Shaft Assembly
Tail Rotor Gearbox Input Shaft
Elastomeric Main Rotor Damper
Tail Rotor Blade Assembly
Tail Rotor Blade Retention Straps
Lower Pulley Coupling Shaft
Tailboom Attaching Strut Assembly

  8,000
  8,000
  4,000
  8,000
13,590
  4,200*
  4,000
  5,500
  4,200
  4,200
  6,000
  8,600
  6,000
  9,000
  5,100
  6,000
10,700

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

* Life based on 600 hours inspection and lubrication interval in accordance with the applicable Handbook of Maintenance Instructions.

** Aircraft must be operated in accordance with Lycoming Service Instruction SI-1009.