BHT-206A/B-SERIES-MM-1
5-00-00
30 APR 2013 Rev. 14 Page 189
Export Classification C, ECCN EAR99
BHT-206A/B-M&O,
BHT206B3-CR&O
TRANSMISSION ASSEMBLY
1. Remove the transmission input pinion and triplex bearing.
2. Inspect the following gear teeth for scoring and other
mechanical damage.
a. Input pinion gear
b. Main input driven bevel gear
3. If any damage suspected to be related to the compressor
stall or surge is found, make an entry on the Historical Service
Record, and attach a tag on the transmission assembly 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.
4. If no defects were detected on the gears, the transmission
assembly is serviceable.
BHT206B3-CR&O TAIL ROTOR GEARBOX
1. Remove the tail rotor gearbox input pinion.
2. Inspect the following gear teeth for scoring and other
mechanical damage.
a. Input pinion gear
b. Spiral bevel gear
3. If any damage suspected to be related to the compressor
stall or surge is found, make an entry on the Historical Service
Record, and attach a tag on the tail rotor gearbox and write
“THIS COMPONENT WAS REMOVED FROM SERVICE
BECAUSE OF A COMPRESSOR STALL/SURGE”. Send the
tail rotor gearbox to a Bell Helicopter Textron approved facility
for overhaul.
4. If no defects were detected on the gears, the tail rotor
gearbox is serviceable.
5-57. ENGINE COMPRESSOR STALL OR SURGE (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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