CHATTANOOGA, TN, USA
N4958U
CESSNA 210E
THE ENG LOST POWER PASSING 4,000 FT DURING CLIMBOUT. THE PLT IMMEDIATELY REVERSED COURSE & ATTEMPTED TO REACH LOVELL FIELD. HE WAS UNABLE TO REACH THE RWY & LANDED IN A SHOPPING CENTER PARKING LOT 1 MI SHORT OF THE RWY. THE RIGHT WING STRUCK A SIGNPOST & THE NOSE GR COLLAPSED. THE THROTTLE LINKAGE WAS FOUND SEPARATED AT THE CONTROL SHAFT UNDER THE ROD END THAT CONNECTS TO THE FUEL CONTROL. THE FRACTURE AREA WAS IN THE CONTROL ROD & THE FRACTURE SURFACE EXHIBITED RUST OVER THE ENTIRE BREAK. METALLURGICAL EXAMINATION REVEALED A FATIGUE FRACTURE OF THE CONTROL SHAFT AT THE POINT WHERE THE DRIVE SCREW WAS INSERTED THROUGH THE SLEEVE, THE THREADED BRASS BUSHING & INTO THE CONTROL SHAFT. CESSNA SERVICE BULLETIN 69-16, DATED 7/22/69, IDENTIFIED THIS PROBLEM & DESCRIBED PROCEDURES TO REMEDY THE PROBLEM. SERVICE LETTERS ARENOT MANDATORY & THERE WAS NO RECORD OF COMPLIANCE IN THE ACFT'S LOGBOOK.
Source: NTSB Aviation Accident Database
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