Piper PA-32R-301 SARATOGA SP Maintenance Manual page 276

FLIGHT CONTROLS (cont.)
(3) Control Cable Inspection (cont.)
(c) Internal Cable Wear
As wear is taking place on the exterior surface of a cable, the same condition is taking place
internally, particularly in the sections of the cable which pass over pulleys and quadrants.
This condition, shown in Figure 4, is not easily detected unless the strands of the cable are
separated. Wear of this type is a result of the relative motion between inner wire surfaces.
Under certain conditions the rate of this type wear can be greater than that occurring on the
surface.
CABLE WEAR
(d) Corrosion
Carefully examine any cable for corrosion that has a broken wire in a section not in contact
with wear producing airframe components such as pulleys, fairleads, etc. It may be necessary
to remove and bend the cable to properly inspect it for internal strand corrosion as this
condition is usually not evident on the outer surface of the cable. Replace cable segments if
internal strand rust or corrosion is found.
Areas especially conducive to cable corrosion are battery compartments, lavatories, wheel
wells, etc., where concentrations of corrosive fumes, vapors, and liquids can accumulate.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
Internal Cable Wear
Figure 4
2B3
CABLE WEAR
27-00-00
Page 27-5
Reissued: July 1, 1993