BHT-212-MM-1
5-00-00
Page 210 Rev. 14 26 JUN 2013
Export Classification C, ECCN EAR99
2. When overtorque has not exceeded 104% (108% for
helicopters with TB 212-91-138 incorporated), perform thorough
visual inspection of the following components. If inspection does
not reveal any discrepancies or obvious damage to
components, the components may be retained in service.
a. Tail rotor blades.
b. Main rotor hub.
c. Tail rotor hub.
d. Intermediate gearbox. Check gearbox for security and
retorque retaining bolts.
e. Tail rotor gearbox. Check gearbox for security and
retorque retaining nuts.
f. Tail rotor driveshafts.
g. Tail rotor driveshaft hangers.
h. Stabilizer bar assembly.
i. Swashplate.
j. Scissors and sleeve assembly.
k. Main driveshaft.
5-53. AFTER OVERTORQUE (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
PT6T-3 PT6T-3B
BELL %
TORQUE
P&WC
FT LB
BELL %
TORQUE
P&WC
FT LB
87.6 900 89.1 915
83.6 859 85.2 875
77.8 800 79.4 815
71.8 738 71.8 738
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