BELL HELICOPTER 430, Maintenance Manual

Page: 98 / 186

BHT-430-MM-2
5-00-00
Page 68
Rev. 15 26 JAN 2007
Chapter 29 and
Chapter 67 4. Remove the access panel from the bottom of the aft
fuselage. Examine the bellcrank and directional control hydraulic
actuator supports for corrosion and mechanical damage.
Examine the actuator for hydraulic leaks and worn bearings.
Make sure it is correctly attached. (F4)
Chapter 65 5. Examine the forward tail rotor driveshaft hanger assembly
for cracks at the mount ears, corrosion or mechanical damage.
Make sure it is correctly attached. Examine the bearing for
discoloration caused by an overheat condition. If applied, check
grease seal to bearing outer race index mark for alignment;
marks must be within 1/8 inch (3.2 mm) of each other. Examine
bearing for any obvious wear or damage and roughness. If any
doubt exists, proceed with inspection of the bearing for
roughness with driveshaft disconnected. (E1/E2)
6. Examine the disc assembly on the forward tail rotor
driveshaft hanger coupling for cracks that radiate from the bolt
holes, corrosion, wrinkles or other signs of overstress. (E1/E2)
Chapter 63 and
Chapter 79 7. Examine the transmission and engine oil coolers for
blockage and oil leaks. Make sure they are correctly attached.
(E1/E2)
Chapter 65
8.
Examine the hangar assemblies of the tail rotor driveshaft
for cracks at the mount ears, corrosion or mechanical damage.
Make sure they are correctly attached. Examine the bearings for
discoloration caused by an overheat condition. If applied, check
grease seal to bearing outer race index mark for alignment;
marks must be within 1/8 inch (3.2 mm) of each other. Examine
bearing for any obvious wear or damage and roughness. If any
doubt exists, proceed with inspection of the bearing for
roughness with driveshaft disconnected. (T1/T2)
Chapter 65 9. Examine the tail rotor driveshaft coupling discs and the disc
at the tail rotor gearbox input quill for radial cracks that radiate
from the bolt holes, corrosion, wrinkles or other signs of
overstress. (T1/T2)
Chapter 53 10. Examine auxiliary fins on the horizontal stabilizer for
damage. Make sure they are correctly attached. (T1/T2)
SCHEDULED INSPECTIONS
5-25. PROGRESSIVE INSPECTION — EVENT 10 (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER