Textron Bell 412, Руководство по обслуживанию

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BHT-412-MM-2
5-00-00
Page 70
Rev. 16 26 FEB 2013 Export Classification C, ECCN EAR99
e. Overheat TEMP-PLATES for condition and security.
TEMP-PLATES must not show evidence of over temperature
indication, deterioration, debonding, or excessive discoloration
of the epoxy overcoating.
NOTE
Step 9 pertains to helicopters S/N 33001 through
33213 and 36001 through 36019 not modified by
412-570-001-103 or Pre BHT-412-SI-74 (412SP to
412HP Upgrade).
Chapter 65 9. Intermediate gearbox:
a. Gearbox assembly for security, condition, corrosion,
damage, and oil leaking.
WARNING
CAUSE OF ANY DISCOLORATION SHALL BE
DETERMINED AND CORRECTED PRIOR TO
NEXT FLIGHT.
b. Input and output quill flexible couplings (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 one or more of the
red bordered TEMP-PLATE dots from white/off-white to black
indicates an overheat condition and may require replacement
of both outer and inner couplings (step c).
c. Overheat TEMP-PLATES for condition and security.
TEMP-PLATES must not show evidence of over temperature
indication, deterioration, debonding, or excessive discoloration
of the epoxy overcoating.
d. Gearbox for proper oil level and oil for evidence of
contamination.
SCHEDULED INSPECTIONS
5-9. 25 HOUR/30 DAY INSPECTION — PART B (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER