Textron Bell 412, Maintenance Manual

Page: 49 / 288

BHT-412-MM-2
5-00-00
26 FEB 2013 Rev. 16 Page 17 Export Classification C, ECCN EAR99
Chapter 63 ROTOR BRAKE QUILL AND BRAKE ASSEMBLY
1. Visually inspect rotor brake assembly for condition,
damage, and security.
2. Visually inspect rotor brake quill for condition, damage, and
leakage.
3. Visually inspect rotor brake disc for warpage.
Chapter 63 TRANSMISSION OIL COOLING AND COMBINING
GEARBOX
1. Visually inspect oil coolers for leaking, damage, and
obstruction.
2. Visually inspect oil cooler hoses and tubes for leaking,
chafing, fraying or other damage.
3. Visually inspect oil cooler blowers for damage and
obstruction.
Chapter 64 TAIL ROTOR HUB AND BLADE ASSEMBLY
WARNING
NO CRACKS ARE PERMITTED ON ANY SURFACE
OF THE TAIL ROTOR BLADES.
1. Tail rotor blades for condition of bond lines, cracks,
corrosion, leading edge erosion, damage, security, and
cleanliness. Clean blades are required to maintain enhanced
visibility for safety.
2. Tail rotor hub for security, corrosion, and condition.
3. Flapping bearings and pitch change bearings for excessive
looseness and freedom of movement through full range of travel
with anti-torque pedals positioned full right and then full left.
SCHEDULED INSPECTIONS
5-5. DAILY INSPECTION — PART A (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER