BHT-212-MM-1
5-00-00
26 JUN 2013 Rev. 14 Page 75
Export Classification C, ECCN EAR99
11. Every fourth 25 hour/30 day inspection:
COUNTERWEIGHT BELLCRANK RETENTION
NUTS P/N MS14145L6 OR ITS EQUIVALENT
MS17826-6 ARE DESIGNATED AS ONE TIME USE
ONLY. IF MAINTENANCE ACTION REQUIRES
THAT IT BE REMOVED, THE COUNTERWEIGHT
BELLCRANK NUT IS TO BE DISCARDED AND
REPLACED WITH A NEW NUT. OVERTORQUING
OR INCORRECT APPLICATION OF THE NUT
COULD CAUSE MECHANICAL FAILURE
RESULTING IN EXCESSIVE VIBRATION OR
DAMAGE TO THE TAIL ROTOR BLADES.
a. Inspect the tail rotor counterweight bellcrank P/N
212-011-705-001 retention nuts for cracks, corrosion, and
security. Reapply corrosion preventive compound (C-101) if
nuts are not completely covered.
Chapter 32 12. Tail skid for deformation and security of attachment.
CABIN ROOF
Chapter 52 and
Chapter 53
1. Cabin structure and cowlings/fairings for condition.
Chapter 63 2. Transmission and transmission oil lines for condition,
corrosion, and leaks.
Chapter 63 and
BHT-212-SI-6
3. Rotor brake quill, disc and brake assembly (if installed):
a. Brake quill for condition, damage, and leakage.
b. Brake disc for condition, damage, security, warpage,
and evidence of overheat.
c. Caliper switches and wiring for condition and security of
attachment.
5-12. 25 HOURS/30 DAYS — PART B (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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