Textron Bell 412 - 5-22 A. EACH 300 HOURS OR 6 MONTHS OF EXPANDABLE BLADE BOLT OPERATION; EXPANDABLE BLADE BOLT (412-010-137-103)

BHT-412-MM-2
5-00-00
Export Classification C, ECCN EAR99
SPECIAL INSPECTIONS
5-22A. EACH 300 HOURS OR 6 MONTHS OF EXPANDABLE BLADE BOLT OPERATION
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
NOTE
Accomplish each 300 hours or 6 months of main
rotor expandable blade bolt operation.
ASB 412-09-137 EXPANDABLE BLADE BOLT (412-010-137-103)
CAUTION
EXPANDABLE BOLT HANDLE SHALL NOT BE
CLOSED WHEN THE BOLT IS NOT INSTALLED
UNLESS THE TENSIONING NUT HAS BEEN
LOOSENED. FAILURE TO FOLLOW THIS
CAUTION COULD RESULT IN DAMAGING THE
BOLT RING SEGMENTS.
Chapter 62 1. Remove the main rotor expandable blade bolts (if installed)
from the main rotor hub assembly.
01 JUN 2018 Rev. 26 Page 132A