BHT-206L4-MM-1
5-00-00
25 FEB 2011 Rev. 13 Page 153
ECCN EAR99
5-52. SUDDEN STOPPAGE/ACCELERATION — TAIL ROTOR
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
SUDDEN STOPPAGE/ACCELERATION
BHT-ALL-SPM Sudden stoppage is defined as any rapid deceleration or
acceleration of the drive system whether caused by seizure
within the helicopter drive system, sudden freewheel clutch
engagement, or by contact of tail rotor blade(s) with the ground,
water, or with a foreign object of sufficient inertia to cause rapid
deceleration.
DAMAGE TO TAIL ROTOR BLADE ASSEMBLY
COULD BE PRESENT ALTHOUGH IT MAY NOT BE
READILY DETECTED BY STANDARD VISUAL,
DIMENSIONAL, AND MAGNETIC PARTICLE OR
FLUORESCENT PENETRANT INSPECTION
METHODS.
Components removed from helicopter for evaluation
following a sudden stoppage/acceleration 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.
1. Remove and scrap tail rotor hub and blade assembly.
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