300-Hour Airframe Progressive Inspection - Event No. 5; Chapter 6 - Bell 206L4 Maintenance Manual

BHT-206L4-MM-1
5-25. 300-HOUR AIRFRAME PROGRESSIVE INSPECTION — EVENT NO. 5 (CONT)
DATA REFERENCE
Chapter 96
Chapter 53

Chapter 67

Chapter 95
Chapter 53
Chapter 25 and
Chapter 53
Chapter 67 and
Chapter 76
Applicable Service
Instruction
Chapter 95
5-00-00
Page 70 Rev. 13 25 FEB 2011
PROGRESSIVE INSPECTIONS
INSPECTION TASK DESCRIPTION
6. Examine electrical components behind hat bin for
condition, security, and cleanliness.
7. Examine engine and transmission support structure for
cracks, corrosion, or loose fasteners.
EXERCISE CARE AND USE ADEQUATE SCREW
LE N G T H W H E N R E IN S TA L L IN G V E RT IC A L
TUNNEL COVER TO AVOID CONTACT WITH TAIL
ROTOR CONTROL TUBE.
8. In the vertical tunnel area, examine the following:
a. Flight control system tubes for evidence of chafing with
oil line or flex cable.
b. Flight control system bellcranks, levers, supports, and
walking beams for binding, excessive looseness, and security of
attachment.
c. Oil lines for leakage, condition, and security.
d. Roof beam interface with vertical tunnel for cracks,
corrosion, and loose fasteners.
e. Vertical tunnel stiffening angles at roof beam interface
for cracks, condition, and loose fasteners.
9. Remove crew seat cushions and panels and examine the
following:
a. Control tubes, N
yokes, and supports for bending, excessive looseness, and
security of attachment.
b. Heater ducts (if installed) for chafing with controls.
c. Oil lines for leakage and general condition.
CAUTION
throttle cable, bellcranks, levers,
1
INITIAL
MECH OTHER
ECCN EAR99