BHT-212-MM-1
5-00-00
26 JUN 2013 Rev. 14 Page 19
Export Classification C, ECCN EAR99
Chapter 63 ENGINE-TO-TRANSMISSION MAIN DRIVESHAFT
1. Visually inspect main driveshaft for condition and security.
CAUSE OF ANY DISCOLORATION SHALL BE
DETERMINED AND CORRECTED PRIOR TO NEXT
FLIGHT.
2. Visually inspect main driveshaft forward and aft couplings,
boots, seals, and surrounding area for grease leakage, damage,
corrosion, and evidence of overheat as indicated by
TEMP-PLATES or coupling discoloration. A change in color of any
yellow bordered TEMP-PLATE, from white/off-white to black, will
indicate a possible overheat condition and/or component
degradation (step 3). If one or more of the red bordered
TEMP-PLATE dots change from white/off-white to black, an
overheat condition is present and may require replacement of both
outer and inner couplings.
3. Visually inspect overheat TEMP-PLATES for condition and
security. TEMP-PLATES must not show evidence of
overtemperature indication, deterioration, debonding, or
excessive discoloration of the epoxy overcoating.
Chapter 63 MAIN ROTOR MAST
— Detailed Visual Inspection
1. Mast assembly for security, corrosion, and mechanical
damage. Pay particular attention to area contacted by main rotor
static stops and damper assembly/adapter set splines.
2. Mast nut for security.
3. Inspect lower area for evidence of oil leaks at mast bearing
cap.
5-8. DAILY INSPECTION — PART A (CONT)
DATA
REFERENCE
INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
To Next Page
Loading...
