What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pan am chief pilot was performing an intermediate stage check for a student working on his commercial rating. The aircraft was on the ground at the approach end of runway 7R. The student and instructor applied power for take-off and began rolling. The aircraft accelerated to approximately 20 KTS when the left engine reportedly lost power. The aircraft began to turn to the left at approximately a 60 degree angle. The student and instructor were unable to maintain control of the aircraft, and departed the runway approximately 450 feet from the approach end. In the accident sequence, the right main gear collapsed causing the right propeller to strike the ground. The aircraft came to rest heading approximately 260 degrees. The left engine, which reportedly lost power, was still running when the aircraft came to rest.
As the FAA filed it
(-23) PAN AM CHIEF PILOT WAS PERFORMING AN INTERMEDIATE STAGE CHECK FOR A STUDENT WORKING ON HIS COMMERCIAL RATING. THE AIRCRAFT WAS ON THE GROUND AT THE APPROACH END OF RUNWAY 7R. THE STUDENT AND INSTRUCTOR APPLIED POWER FOR TAKE-OFF AND BEGAN ROLLING. THE AIRCRAFT ACCELERATED TO APPROXIMATELY 20 KTS WHEN THE LEFT ENGINE REPORTEDLY LOST POWER. THE AIRCRAFT BEGAN TO TURN TO THE LEFT AT APPROXIMATELY A 60 DEGREE ANGLE. THE STUDENT AND INSTRUCTOR WERE UNABLE TO MAINTAIN CONTROL OF THE AIRCRAFT, AND DEPARTED THE RUNWAY APPROXIMATELY 450 FEET FROM THE APPROACH END. IN THE ACCIDENT SEQUENCE, THE RIGHT MAIN GEAR COLLAPSED CAUSING THE RIGHT PROPELLER TO STRIKE THE GROUND. THE AIRCRAFT CAME TO REST HEADING APPROXIMATELY 260 DEGREES. THE LEFT ENGINE, WHICH REPORTEDLY LOST POWER, WAS STILL RUNNING WHEN THE AIRCRAFT CAME TO REST.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.