Textron Bell 412 - 5-27. EACH 24 MONTHS OF CONTROL BOLT OPERATION; FLIGHT CONTROL SYSTEM BOLTS

BHT-412-MM-2
5-00-00
Page 148 Rev. 23 15 DEC 2015
Export Classification C, ECCN EAR99
SPECIAL INSPECTIONS
5-27. EACH 24 MONTHS OF CONTROL 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 24 months of control bolt
operation.
FLIGHT CONTROL SYSTEM BOLTS
NOTE
Refer to Chapter 4 for retirement life of flight control
bolts.
Chapter 29
Chapter 62
Chapter 63
Chapter 67
1. Remove the following flight control bolts:
BOLT PART NUMBER LOCATION
20-057-5-24D Swashplate inner ring to
L/H and R/H cyclic boost (2)
20-057-5-24D Collective lever to collective
boost (1)
20-057-5-24D Boost tube to universal (3)
20-057-5-24D Universal to boost tube (3)