Textron Bell 206A Series, Maintenance Manual

Page: 201 / 234

BHT-206A/B-SERIES-MM-1
5-00-00
Export Classification C, ECCN EAR99
NOTE
Step 7, substep a and substep b are not applicable
to riveted tail rotor segmented driveshafts.
BHT-206B3-CR&O 7. In addition, all bonded tail rotor driveshafts shall be
considered unserviceable and scrapped, if during a sudden
stoppage inspection any of the following conditions, which are
attributable to sudden stoppage, are noted:
a. Any impact damage to a tail rotor blade leading edge or
skin, or any tail rotor blade skin buckling or tears.
b. Any deformation of any coupling disc that results in
gaps between laminates greater than 0.015 inch (0.38 mm).
c. Structural failure or distortion of any coupling disc bolts.
d. Structural failure or distortion exceeding specified limits
of tail rotor driveshaft steel or aluminum adapters.
Chapter 53 8. Inspect tailboom area of tail rotor gearbox mounting studs
for cracks.
9. Inspect four tailboom attachment points for cracks,
distortion damage, and security. Check torque on nuts of
tailboom attachment bolts.
BHT-206-SRM-1 10. Inspect tailboom internally for cracks, distortion, and loose
or missing rivets. Check external skin of tailboom for cracks and
waviness. Pay particular attention to area of horizontal stabilizer
and attachment points of vertical fin.
Chapter 53 11. Inspect horizontal stabilizer for cracks and looseness.
12. Inspect vertical fin for security and overall condition. Check
tail skid for condition and security. Check mounting of
anti-collision light for security and condition.
Rolls-Royce 250
Series Operation and
Maintenance Manual,
5W2 or 10W2 13. Refer to applicable Rolls-Royce 250 Series Operation and
Maintenance Manual for sudden stoppage inspection
requirements.
CONDITIONAL INSPECTIONS
5-54. SUDDEN STOPPAGE/ACCELERATION — TAIL ROTOR (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
30 APR 2013 Rev. 14 Page 171/172