Schweizer Aircraft Corporation

2006 MODEL 300C HELICOPTER

OVERHAUL AND RETIREMENT SCHEDULE

COMPONENTS WITH

SCHEDULED OVERHAUL TIMES

OVERHAUL
INTERVAL HOURS

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

1,500
3,000
3,000
3,000
1,800
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
Vertical 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

6,000
6,000
3,200
8,000
13,590
3,000
3,600
5,500
4,200
4,200
20,540
6,000
8,600
6,000
9,000
5,100
6,000
10,700

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