Bell 206L4 Maintenance Manual page 184

BHT-206L4-MM-1
5-51. SUDDEN STOPPAGE/ACCELERATION — MAIN ROTOR (CONT)
DATA REFERENCE
BHT-206L-CR&O
BHT-206A/B/L-Series-
CR&O
5-00-00
Page 148 Rev. 18 7 JUN 2013
CONDITIONAL INSPECTIONS
INSPECTION TASK DESCRIPTION
2. After sudden stoppage of the main rotor, remove both main
rotor blades. Send blades to a Bell Helicopter Textron approved
blade repair facility for evaluation.
3. Remove the following components and visually inspect for
evidence of torsional yielding, deformation, cracks, or other
obvious damage that would render them non-repairable.
Conduct an overhaul of these components.
If main rotor mast was severed during main rotor
sudden stoppage/acceleration, the main rotor hub
assembly must be considered unserviceable and
scrapped.
a. Main rotor hub assembly in accordance with the
Conditional Inspection criteria.
If main rotor mast was severed during a main rotor
sudden stoppage/acceleration with the engine
operating, the main rotor mast has sustained
torsional yielding.
b. Mast assembly.
(1) Concurrently
accomplish the following inspections:
(a) Do a Total Indicated Runout (TIR) of the main
rotor mast.
NOTE
NOTE
with mast assembly
Export Classification C, ECCN EAR99
INITIAL
MECH OTHER
overhaul,