TM 55-1520-240-23-9
11-12
REPAIR CONTROL ARMS AND BELLCRANKS
11-12
INITIAL SETUP
Applicable Configurations:
All
Tools:
As Required
Materials:
As Required
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 1-1500-204-23
Equipment Condition:
As Required
This does not apply to bearing or
bushing bores.
1.
Damage to bores or holes must not be more than
0.015 inch in depth and must not be more than 5
percent of the load bearing surface.
2.
Remove surface scores, tool marks, or corrosion
pits by burnishing. Depth after burnishing must
not be more than 10 percent of thickness or
0.040 inch, whichever is less. An area of 20
times damage depth may be burnished. If
damage is close to fillets, radii, holes, or edges,
burnish a greater area.
11-48