Aviation Accident Summary CHI85LA172

ST. PAUL, MN, USA

Aircraft #1

N94740

Ercoupe (Eng & Research Corp.) 415-CD

Analysis

SHORTLY AFTER TAKEOFF, WHILE CLIMBING THRU APRX 700 FT AGL, THE ENG DEVELOPED A SEVERE VIBRATION & A LOUD 'CLANKING' SOUND. THESE WERE FOLLOWED BY A PARTIAL LOSS OF POWER. DURING A SUBSEQUENT FORCED LANDING, THE ACFT'S RIGHT WING HIT A TREE & THE NOSE GEAR COLLAPSED ON ROUGH TERRAIN. AN EXAM OF THE ENG REVEALED THAT THE #3 EXHAUST VALVE, PN 3921, HAD FAILED NEAR THE STEM-HEAD. THE ENG HAD 1040 HRS IN SERVICE SINCE MAJOR OVERHAUL.

 

Source: NTSB Aviation Accident Database

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