Narrative:

Upon normal acceleration and takeoff on runway 8L at mia, the aircraft attained positive rate of climb indication, the gear lever was placed into the retract position and the right forward (co-pilot) door came open. The aircraft settled toward the ground and amid the greatly increased noise and debris moving around the cabin combined with the increased drag due to the door being open, the aircraft lost some altitude. Full throttle was maintained and the aircraft climbed out normally. I informed tower of the open door and that we would like to return for landing. The aircraft was cleared for left downwind to land again on runway 8L. I declined priority to land before an approaching air carrier on adjacent runway 8R and followed the heavy in sequence. A normal approach and landing, including use of checklist, was conducted. Subsequent to landing to secure the door, the aircraft was inspected on the ground for security of the door and it was discovered that the propeller tips had struck the pavement during the climb out. Part of the normal prep-takeoff checklist includes a check of the door for security. This was performed both by me and by the multi-engine instrument rated pilot-passenger sitting in the copilot seat. The door appeared to be secured and the handle was definitely in the locked position. Standard procedures were followed during the open door situation which included a standard checklist for landing on the return to runway 8L. I am uncertain as to actions, either direct or indirect, which could have been taken to prevent the propeller tip strike.

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Original NASA ASRS Text

Title: BE58 PROP STRIKE AFTER COCKPIT DOOR OPENS ON TKOF ROTATION AT MIA, FL.

Narrative: UPON NORMAL ACCELERATION AND TKOF ON RWY 8L AT MIA, THE ACFT ATTAINED POSITIVE RATE OF CLB INDICATION, THE GEAR LEVER WAS PLACED INTO THE RETRACT POS AND THE R FORWARD (CO-PLT) DOOR CAME OPEN. THE ACFT SETTLED TOWARD THE GND AND AMID THE GREATLY INCREASED NOISE AND DEBRIS MOVING AROUND THE CABIN COMBINED WITH THE INCREASED DRAG DUE TO THE DOOR BEING OPEN, THE ACFT LOST SOME ALT. FULL THROTTLE WAS MAINTAINED AND THE ACFT CLBED OUT NORMALLY. I INFORMED TWR OF THE OPEN DOOR AND THAT WE WOULD LIKE TO RETURN FOR LNDG. THE ACFT WAS CLRED FOR L DOWNWIND TO LAND AGAIN ON RWY 8L. I DECLINED PRIORITY TO LAND BEFORE AN APCHING ACR ON ADJACENT RWY 8R AND FOLLOWED THE HVY IN SEQUENCE. A NORMAL APCH AND LNDG, INCLUDING USE OF CHKLIST, WAS CONDUCTED. SUBSEQUENT TO LNDG TO SECURE THE DOOR, THE ACFT WAS INSPECTED ON THE GND FOR SECURITY OF THE DOOR AND IT WAS DISCOVERED THAT THE PROP TIPS HAD STRUCK THE PAVEMENT DURING THE CLBOUT. PART OF THE NORMAL PREP-TKOF CHKLIST INCLUDES A CHK OF THE DOOR FOR SECURITY. THIS WAS PERFORMED BOTH BY ME AND BY THE MULTI-ENG INST RATED PLT-PAX SITTING IN THE COPLT SEAT. THE DOOR APPEARED TO BE SECURED AND THE HANDLE WAS DEFINITELY IN THE LOCKED POS. STANDARD PROCS WERE FOLLOWED DURING THE OPEN DOOR SIT WHICH INCLUDED A STANDARD CHKLIST FOR LNDG ON THE RETURN TO RWY 8L. I AM UNCERTAIN AS TO ACTIONS, EITHER DIRECT OR INDIRECT, WHICH COULD HAVE BEEN TAKEN TO PREVENT THE PROP TIP STRIKE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.