Textron Bell 412EP - 5-40. AFTER OVERTORQUE

BHT-412-MM-2
5-00-00
15 DEC 2015 Rev. 23 Page 207
Export Classification C, ECCN EAR99
CONDITIONAL INSPECTIONS
5-40. AFTER OVERTORQUE
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
NOTE
Accomplish after overtorque.
Components removed from a helicopter for
evaluation following an overtorque shall be evaluated
as an interrelated group. Make entries in component
records to cross reference part and serial numbers of
other drive system components removed for
evaluation.
AFTER OVERTORQUE
Overtorque is defined as any incident in which torsional loads
are introduced into the helicopter dynamic system in excess of
established limits.
Pratt & Whitney
Canada Engine
Maintenance Manuals
1. Refer to applicable Pratt & Whitney Canada Engine
Maintenance Manual for engine overtorque inspection limits.
NOTE
To assist with determining engine overtorque
inspection requirements, the following table provides
a comparison between Bell Helicopter cockpit torque
gauge % values and Pratt & Whitney Maintenance
Manual FT LB values.