Textron Bell 412, Руководство по обслуживанию

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BHT-412-MM-2
5-00-00
26 FEB 2013 Rev. 16 Page 15 Export Classification C, ECCN EAR99
NOTE
Use swashplate link and drive link bearings — Work
aid (Chapter 62) to assist with determining condition
of main rotor control bearings.
3. Visually inspect drive hub and rephasing levers for bearing
looseness and security of attachment.
4. Visually inspect pitch links for condition, security, and
bearing looseness.
5. Visually inspect mast assembly for corrosion and
mechanical damage. Mast seal for leakage.
Chapter 63 ENGINE-TO-TRANSMISSION (MAIN) DRIVESHAFT
1. Visually inspect main driveshaft for condition and security.
WARNING
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 of 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.
SCHEDULED INSPECTIONS
5-5. DAILY INSPECTION — PART A (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER