CULLMAN, AL, USA
N18411
BEECH 95-B55
AFTER TAKEOFF FROM RWY 1, THE ACFT WAS OBSERVED TO CLIMB IN A STEEP ATTITUDE INTO THE CLOUDS. THE ACFT CRASHED IN A NEARVERTICAL ATTITUDE ABOUT 3/4 MI FROM THE RWY ON A BEARING OF 050 DEG. THE CONTROL LOCK PIN FLAG WAS FOUND IN THE VICINITYOF THE CONTROL COLUMN WITH THE PIN MISSING. EXAMINATION OF THE ELEVATOR TRIM MOTOR GEARS REVEALED A DAMAGE TOOTH ON THE DRIVE GEAR & A SERIES OF MARKED TEETH ON THE DRIVER GEAR. THE ELEVATOR TRIM TAB WAS FOUND IN THE MAX DEFLECTION POSITION(FULL-UP TAB.) THE ELEVATOR TRIM MOTOR, WHEN OPERATING, TAKES 57.5 SECS TO MOVE FROM NEUTRAL TO FULL UP; 27 SECS TO MOVEFROM NEUTRAL TO FULL DOWN; & 67 SECS TO MOVE FROM FULL UP TO FULL DOWN. WHEN THE CONTROL LOCK PIN IS INSTALLED, THE ELEVATOR IS LOCKED 12 DEGS DOWN & THE AILERON IS LOCKED 8 DEGS RIGHT AILERON UP. THE LEFT PROP BLADES WERE BENT AFT ABOUT THE BLADE FACES. SOME CHORDWISE SCRAPES WERE NOTED. THE PROP HAD SEPARATED FROM THE ENG DRIVE SHAFT UNDER A TORSION & BENDING LOAD.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
