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5-55.
ENGINE COMPRESSOR STALL OR SURGE (CONT)
DATA REFERENCE
BHT-206L-CR&O
ECCN EAR99
CONDITIONAL INSPECTIONS
INSPECTION TASK DESCRIPTION
2.
If any blade has visible damage suspected to be related to
the stall or surge, make an entry on the Historical Service
Record and attach a tag on blades and write, "THIS BLADE
WAS
REMOVED
FROM
COMPRESSOR STALL/SURGE." Send the blade(s) to a Bell
Helicopter Textron approved rotor blade repair facility for further
inspection and repair.
3.
If no defects were detected on any blade, the blade(s) are
serviceable.
This inspection does not require disassembly or
removal from the helicopter.
4.
Examine the main rotor hub for condition. If any damage is
suspected to be related to the stall or surge, remove the main
rotor hub assembly. Make an entry on the Historical Service
Record and attach a tag on the main rotor hub and write, "THIS
MAIN ROTOR HUB ASSEMBLY WAS REMOVED FROM
SERVICE BECAUSE OF A COMPRESSOR STALL/SURGE."
Send the component to a Bell Helicopter Textron approved
facility for overhaul.
5.
If no defects were detected on main rotor hub, the main
rotor hub is serviceable.
6.
If defects are detected in step 1, step 2, and step 4 through
step 5, discard all bonded tail rotor driveshafts and perform a
main rotor sudden stoppage inspection.
SPECIAL INSPECTION
After 25 hours of operation, examine chip detectors of
transmission, freewheel assembly, and tail rotor gearbox. If the
chip detector shows signs of metal particles, perform a
serviceability check. Components that fail the serviceability
check shall be removed. Make an entry on the applicable
components Historical Service Record and attach a tag and
write "THIS COMPONENT WAS REMOVED FROM SERVICE
BECAUSE OF A COMPRESSOR STALL/SURGE". Send the
component to a Bell Helicopter Textron approved facility for
overhaul.
SERVICE
BECAUSE
NOTE
25 FEB 2011 Rev. 13
BHT-206L4-MM-1
INITIAL
MECH OTHER
OF
A
5-00-00
Page 171
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