BELL HELICOPTER 222, Maintenance Manual

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BHT-222/222B-MM-1
5-00-00
9 SEP 2011 Rev. 7 Page 151 ECCN EAR99
BHT-222-CR&O-2 d. Main Driveshafts
(1) Remove and inspect main driveshafts visually.
If evidence of yielding or deformation is noted, scrap the
appropriate driveshaft assembly and the engine driveshaft
adapter and attaching bolts.
BHT-222-CR&O-2 (2) If no visual evidence of damage is detected,
perform an overhaul. Make an entry in component record to
show reason for removal was sudden stoppage.
e. Engine Mounts
(1) lnspect No. 1 and No. 2 engine mounts for cracks
or distorted mount bolts.
Honeywell Overhaul
Manual (2) If driveshaft has been scrapped or sudden
stoppage has occurred sufficient to crack engine mounts or
yield connecting bolts, remove the affected engine and perform
an overhaul evaluation.
(3) Make an entry in component record to show
reason for removal was sudden stoppage.
BHT-222-CR&O-2 f. Transmission and Mast Assembly
(1) If mast has evidence of torsional yielding, the mast
and transmission shall be considered unserviceable and
scrapped. If a main driveshaft required replacement (step d),
the outboard quill will be unserviceable and scrapped.
BHT-222-CR&O-2 (2) If mast does not have torsional yielding, main
driveshafts were retained (step d), and transmission has no
obvious damage that would render it nonrepairable, the
transmission and mast shall have an overhaul evaluation. Make
an entry in component record to show reason for removal was
sudden stoppage.
BHT-222-CR&O-2 (3) Replace collector gear. lnspect collector gear shaft
for excessive runout of gear mounting flange. Runout of the
gear flange must not exceed 0.0004 inch (0.0102 mm) when
gear shaft is mounted on centers or on bearing journals.
CONDITIONAL INSPECTIONS
5-53. SUDDEN STOPPAGE — POWER ON OR OFF (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER