TM 1-1520-253-23
MAINTENANCE ALLOCATION CHART
NONDESTRUCTIVE INSPECTION
NDI METHODS/EQUIPMENT
001
Fluorescent Penetrant Method
002
Magnetic Particle Method
003
Eddy Current Method
004
Ultrasonic Method
005
Bond Testing Method
006
Radiographic Method
NOMENCLATURE OF END ITEMS
HELICOPIER, CH/MH-47 SERIES
(1)
(2)
(3)
(4)
(5)
(6)
PROCEDURE
INSPECT
MAINTENANCE CATEGORY
INSPECTION
NUMBER
COMPONENT/ASSEMBLY
FOR
EQUIPMENT
REMARKS
AVUM
AVIM
DEPOT
REQUIREMENTS
√
2.2
Rotary-Wing Head
Cracks
002
√
2.3
Hub Oil Tank
Cracks
003
Backup
001
√
2.4
Pitch Varying Shaft
Cracks
002
Backup
001
√
2.5
Rotor Hub
Cracks
002
Backup
001
√
2.6
Vertical Hinge Pin Flanges
Cracks
002
√
2.7
Pitch Varying Shaft Bore
Cracks
002
Backup
Liner
001
√
2.8
Horizontal Hinge Pin
Cracks
002
Backup
001
√
2.9
Centrifugal Droop Stop
Cracks
003
√
2.10
Centrifugal Droop Stop
Cracks
002
Bolts
√
2.11
Rotary-Wing Blade
Voids
005
√
2.12
Pitch Link
Cracks
002
Backup
001
√
2.13
Ball Spherical Bearing
Cracks
003
Backup
001
√
2.14
Weather Protective Cover
Voids
005
