Beechcraft S35 Bonanza
Cracked and Corroded
During an annual inspection, discovered right lower aileron control cable turnbuckle barrel located under aft cabin heat duct was cracked ¾ inches longitudinally from its end. The heating system duct above this turnbuckle assembly was in a decayed condition. Recommend close inspection of cables and turnbuckles in this area.
Part total time: 3875.0 hours
Beechcraft S35 Bonanza
More Cracked and Corroded
At the owner’s request, we removed the seats and floorboards to inspect the aileron cable turnbuckle. The turnbuckle (p/n AN-155-32S) was corroded under the safety wire. When the safety wire was cut, the turnbuckle failed. The safety wire was the only component holding the turnbuckle together. This turnbuckle is located under the rear heater hose fitting and appears to have collected moisture, which then dripped down onto the turnbuckle. Recommend removing the safety wire to properly inspect.
Part total time: Unknown
Cessna 172G Skyhawk
Control Cable Separation
Aircraft lost aileron control in flight. Pilot declared emergency and landed. The left aileron’s swaged turnbuckle fitting under right side of the cockpit panel had failed.
Part total time: 5228.0 hours
Cessna 182Q Skylane
Corroded And Pitted
During an annual inspection, we found the left forward and aft aileron turnbuckle ends (p/n MS21252-511) corroded and pitted. Installed new turnbuckle ends and rigged per Cessna maintenance manual.
Part total time: Unknown
Piper PA-28-180 Cherokee 180
Cracked Cable Swaging
While retensioning the lower stabilator turnbuckle after stabilator replacement, the aft cable end appeared bent. Inspection showed a crack and partial parting of the swaged cable end. The crack was between the threads and safety wire hole in the area where the safety wire wraps to the end and would have been concealed by the safety wire.
Part total time: 3851.0 hours
Piper PA-28-235 Cherokee 235
More Cracked Cable Swages
While accomplishing AD 2013-02-13 for stabilator cable turnbuckle and swaged fitting corrosion, discovered that the brass turnbuckle was badly corroded and needed replacement. While inspecting the stainless steel swaged fittings, discovered a crack in the lower aft stabilator cable that ran approximately halfway around the fitting.
Part total time: 1029.0 hours
