Rotary Wing
Sampling Intervals
Aircraft
Component
Hours
Days
Designation
Model
HH-60L
Physical Properties Only
500
Main Transmission (all)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU
MH-47D
50
Engine (T55-L712/714) (2)
50
Engine Mech Transmission (2)
50
Combining Transmission
50
Forward Transmission
50
Aft Transmission
100
APU
100
50
Hyd Sys 1
100
50
Hyd Sys 2
100
50
Hyd Sys Util
MH-47E
50
Engine (T55-L712/714) (2)
50
Engine Mech Transmission (2)
50
Combining Transmission
50
Forward Transmission
50
Aft Transmission
100
APU
100
50
Hyd Sys 1
100
50
Hyd Sys 2
100
50
Hyd Sys Util
MH-6H
365
100
Main Transmission
365
100
90/Tail Gearbox
MH-6J
365
100
Main Transmission
365
100
90/Tail Gearbox
MH-6N
365
100
Main Transmission
365
100
90/Tail Gearbox
MH-60L
Physical Properties Only
500
Main Transmission (all)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU
MH-60K
Physical Properties Only
500
Main Transmission (all)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU
OH-58A
0
T63-A-720 with 3 micron filter
50
T63-A-720
25
Main Transmission
25
90/Tail Gearbox
OH-58C
0
T63-A-720 with 3 micron filter
50
T63-A-720
25
Main Transmission
25
90/Tail Gearbox
OH-58D
Remove All AOAP
Sampling Requirements Except:
40
Hydraulic System
A-2
