DFW AIRPORT, TX, USA
N124AA
McDonnell Douglas DC-10-10
THE ACFT EXPERIENCED SEPN OF THE RGT WING #3 LEADING EDGE SLAT WHILE DESCENDING FOR AN APCH. AN INVESTIGATION REVEALED THAT ON 7/5/84, THE COMPANY PERFORMED A 'C' CHECK INSPECTION OF THE ACFT. AT THIS TIME A RGT WING #3 LEADING EDGE SLAT RETRACT ALUMINUM PULLEY, P/N 1969-132, WAS REPLACED WITH A PHENOLIC PULLEY, P/N 1969-172. THE DC-10 PARTS ILLUSTRATED CATALOGUE SPECIFIES THAT AN ALUMINUM PULLEY BE INSTALLED ON THE #3 LEADING EDGE SLAT RATHER THAN THE PHENOLIC PULLEY BECAUSE FLT LOADS ON THE #3 SLAT EXCEEDED THE DESIGN LOAD OF THE PHENOLIC PULLEY. METALLURGICAL EXAMINATION OF THE FAILED PULLEY & CABLE INDICATED EVIDENCE OF AN OVERLOAD FAILURE. INSPECTION OF OTHER COMPANY DC-10'S REVEALED AT LEAST 3 OTHER ACFT HAD PHENOLIC PULLEYS INSTALLED IN THE #3 SLAT POSITION.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
