BHT-212-MM-1
5-00-00
26 JUN 2013 Rev. 14 Page 205
Export Classification C, ECCN EAR99
5-52. AFTER OVERSPEED
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
Accomplish inspection after overspeed.
AFTER OVERSPEED
Components removed from a helicopter for
evaluation following an overspeed 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.
Overspeed is defined as any incident in which 110%
main rotor RPM is exceeded.
1. Perform overspeed inspection as follows:
Pratt & Whitney
Canada PT6T-3/-3B
Maintenance Manual
a. Refer to Pratt & Whitney Canada PT6T-3/-3B
Maintenance Manual for engine overspeed and inspection
requirements.
b. Main rotor hub assembly.
(1) Remove main rotor hub. Remove main rotor
blades.
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