BHT-212-MM-1
5-00-00
26 JUN 2013 Rev. 14 Page 209
Export Classification C, ECCN EAR99
5-53. AFTER OVERTORQUE
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
Accomplish inspection after overtorque.
AFTER OVERTORQUE
Components removed from a helicopter for
evaluation following an overtorque shall be evaluated
as an interrelated group. Removal records
accompanying each component shall
cross-reference part and serial numbers of other
drive system components removed for evaluation.
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 PT6T-3/-3B
Maintenance Manual
1. Refer to Pratt & Whitney Canada PT6T-3/-3B Maintenance
Manual for engine overtorque inspection limits.
To assist with determining engine overtorque
inspection requirements, the following table provides
a comparison between Bell Helicopter cockpit torque
gauge % values and Pratt & Whitney Canada
Maintenance Manual FT LB values.
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