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Birmingham, AL
DURING TAKEOFF, THE AIRCRAFT COLLIDED WITH RISING TERRAIN ABOUT 3/10 MILE NORTH OF RUNWAY 36. THE PILOT REPORTED THAT THE AIRSPEED DECAYED AND THE AIRCRAFT MUSHED INTO THE GROUND. NO PREIMPACT MALFUNCTION OR FAILURE WAS FOUND. THE TEMPERATURE AND DEW POINT WERE 81 AND 73 DEG, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CHARTS, SERIOUS CARBURETOR ICING WOULD OCCUR AT GLIDE (IDLE) POWER. THE AIRCRAFT OPERATOR'S HANDBOOK STATED THAT CARBURETOR HEAT SHOULD BE CHECKED PRIOR TO TAKEOFF TO BE SURE THE CONTROL IS OPERATING PROPERLY AND TO CLEAR ANY ICE WHICH MAY HAVE FORMED DURING TAXIING. THE PILOT REPORTED THAT THE PREFLIGHT AND RUNUP INSPECTION WERE COMPLETED IN ACCORDANCE WITH THE PUBLISHED CHECKLIST.
DURING TAKEOFF, THE AIRCRAFT COLLIDED WITH RISING TERRAIN ABOUT 3/10 MILE NORTH OF RUNWAY 36. THE PILOT REPORTED THAT THE AIRSPEED DECAYED AND THE AIRCRAFT MUSHED INTO THE GROUND. NO PREIMPACT MALFUNCTION OR FAILURE WAS FOUND. THE TEMPERATURE AND DEW POINT WERE 81 AND 73 DEG, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CHARTS, SERIOUS CARBURETOR ICING WOULD OCCUR AT GLIDE (IDLE) POWER. THE AIRCRAFT OPERATOR'S HANDBOOK STATED THAT CARBURETOR HEAT SHOULD BE CHECKED PRIOR TO TAKEOFF TO BE SURE THE CONTROL IS OPERATING PROPERLY AND TO CLEAR ANY ICE WHICH MAY HAVE FORMED DURING TAXIING. THE PILOT REPORTED THAT THE PREFLIGHT AND RUNUP INSPECTION WERE COMPLETED IN ACCORDANCE WITH THE PUBLISHED CHECKLIST.