BHT-212-MM-1
5-00-00
Page 202 Rev. 14 26 JUN 2013
Export Classification C, ECCN EAR99
(c) Cracks.
(d) Loose or sheared rivets.
(e) Scratches in excess of limits.
(2) If inspection reveals no condition as previously
listed in step (a) through step (e) exists, driveshaft may remain
in service.
i. Tail rotor hub and blade assembly.
Nicks, scratches, or dents on top or bottom of blade
(nonleading edge) that do not require removal of
blades for replacement may not require the tail rotor
assembly to be scrapped. If any doubt exists, contact
Product Support Engineering.
(1) Tail rotor hub and blade assembly: If sudden
stoppage originated at tail rotor blades, tail rotor hub assembly
shall be considered unserviceable and non-repairable and must
be discarded.
(a) If sudden stoppage originated at main rotor or
main rotor transmission, tail rotor hub and blade assembly may
remain in service provided there is no visible external damage.
If visible damage is noted on tail rotor hub and blade assembly,
an overhaul of the tail rotor hub shall be performed. Make an
entry in component records to show reason for removal was
sudden stoppage.
(b) If sudden stoppage originated at tail rotor
driveshaft, intermediate gearbox, or tail rotor gearbox remove
tail rotor hub and blade assembly and perform an overhaul of
the tail rotor hub. Make an entry in component record to show
reason for removal was sudden stoppage.
(c) If either tail rotor blade is damaged sufficiently
to require blade repair, return both blades to an authorized
overhaul facility. Make an entry in component record to show
that reason for removal was sudden stoppage.
5-51. AFTER BLADE STRIKE OR OTHER ROTATING SYSTEM TORQUE SPIKE (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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