NTSB Identification: NYC88LA176.
The docket is stored on NTSB microfiche number 39780.
Accident occurred Monday, July 04, 1988 in LINDEN, NJ
Probable Cause Approval Date: 06/25/1990
Aircraft: LAKE LA-4, registration: N6655L
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

ON FINAL TAKEOFF OF A FULL STOP LANDING PRACTICE, THE STUDENT PILOT WAS AT THE CONTROLS BUT WAS HAVING DIFFICULTY MAINTAINING DIRECTIONAL CONTROL OF THE ACFT AS IT CLIMBED VERY SLOWLY. THE CFI TOOK OVER APPLYING LARGE AMOUNTS OF LEFT AILERON TO MAINTAIN A WINGS LEVEL ATTITUDE. AT THIS POINT, THE STUDENT OBSERVED CREASES IN THE UPPER SKIN OF THE LEFT WING. THE ACFT WAS ABLE TO CLEAR POWER LINES, BUT DUE TO THE SURROUNDING TERRAIN, THE CFI ELECTED TO LAND STRAIGHT AHEAD IN MARSHLAND. THE ACFT BOUNCED ON TOUCHDOWN AND DECELERATED RAPIDLY AS THE ACFT SPUN AROUND. METALLURGICAL INSPECTION REVEALED THE LEFT WING CONTAINED A COMPRESSION BUCKLE WITH UPWARD BENDING OF THE WING. THE INTERNAL STRUCTURAL MEMBERS OF THE WING SHOWED SIGNS OF OVERLOAD/OVERSTRESS FAILURES.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

HARD LANDING DUE TO IMPROPER LEVEL OFF OF THE STUDENT AND THE FLIGHT INSTRUCTOR'S INADEQUATE SUPERVISION. THE LEFT WING PARTIALLY FAILED BECAUSE OF OVERLOAD AND THE AIRCRAFT MADE A FORCED LANDING IN A SWAMP.

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