TM 55-1520-240-23-4
5-21.3
INSPECT ROTOR HUB SURFACE
5-21.3
INITIAL SETUP
Applicable Configurations:
All
Tools:
Fluorescent Penetrant Method
Materials:
Cloths (E120)
Acetone (E20)
Abrasive Pad (E2)
Gloves (E186)
Personnel Required:
Aircraft Powertrain Repairer
Inspector
References:
TM 1-1520-253-23
Equipment Condition:
Off Helicopter Task
General Safety Instructions:
Acetone (E20) is extremely flammable.
It can be toxic. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
Keep away from heat, sparks, or open
flame. In case of contact, immediately
flush skin or eyes with water for
at least 15 minutes. Get medical
attention for eyes.
Primers (E294 and E302) are
flammable and toxic. They can irritate
skin and cause burns. Use only with
adequate ventilation, away from heat
or open flame. Avoid contact with skin,
eyes, or clothing. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
Power tools shall not be used to
remove finish. Damage to head can
result.
5-109
