Narrative:

Rear cargo door opened and struck side of aircraft. The door was closed by agent with pilot observing. I locked the adjoining door with key and observed positive lock. When power was reduced to begin descent, the door opened causing damage to side of aircraft. The latch for the rear door must not have been properly secured. Best recommendation is that PIC close and latch doors.

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Original NASA ASRS Text

Title: A C206 IN CRUISE WHEN PWR REDUCED FOR DSCNT EXPERIENCED THE AFT CARGO DOOR OPEN AND STRIKE THE FUSELAGE INCURRING ACFT DAMAGE.

Narrative: REAR CARGO DOOR OPENED AND STRUCK SIDE OF ACFT. THE DOOR WAS CLOSED BY AGENT WITH PLT OBSERVING. I LOCKED THE ADJOINING DOOR WITH KEY AND OBSERVED POSITIVE LOCK. WHEN PWR WAS REDUCED TO BEGIN DSCNT, THE DOOR OPENED CAUSING DAMAGE TO SIDE OF ACFT. THE LATCH FOR THE REAR DOOR MUST NOT HAVE BEEN PROPERLY SECURED. BEST RECOMMENDATION IS THAT PIC CLOSE AND LATCH DOORS.

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.