Narrative:

We are a 121 carrier. My first officer and I reported for duty at rdu at approximately XA00. It was dark and our aircraft was at the gate with the APU operating. We have contract maintenance in rdu and I was not aware that the plane had been towed to the gate from the hangar as it was parked in its usual overnight parking location. My first officer performed the external preflight and I performed the interior first flight of the day/acceptance checks. It was dark outside but my first officer was using a flashlight. He did not report anything abnormal. After takeoff and during climb out everything was normal. We leveled off at FL330 en route to bos. As we began our descent we accelerated through approximately mach .83 and I felt a slight vibration. I thought we may have picked up a little ice in the climb out so I slowed to approximately mach .79 and the vibration stopped. The remainder of the flight was normal. After parking in bos and deplaning passenger my first officer performed a postflt exterior inspection. He informed me that the aircraft was damaged. I exited the aircraft and noticed that the left winglet was damaged and distorted. I notified our company. A few days later I received a telephone call from our vice president of safety. He informed me that the employees of the maintenance facility apparently pulled our aircraft out of the maintenance hangar and dragged our winglet across the underside of a jetstream causing substantial damage to the jetstream. They believe since the canadair was being towed straight, it lifted the jetstream and did damage to the top of our winglet. When we started our descent the airflow struck the damaged top of the winglet causing it to come apart.

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Original NASA ASRS Text

Title: CL65 CREW HAD AN ACFT THAT WAS DAMAGED WHEN BEING PUSHED OUT OF A HANGAR AT RDU.

Narrative: WE ARE A 121 CARRIER. MY FO AND I RPTED FOR DUTY AT RDU AT APPROX XA00. IT WAS DARK AND OUR ACFT WAS AT THE GATE WITH THE APU OPERATING. WE HAVE CONTRACT MAINT IN RDU AND I WAS NOT AWARE THAT THE PLANE HAD BEEN TOWED TO THE GATE FROM THE HANGAR AS IT WAS PARKED IN ITS USUAL OVERNIGHT PARKING LOCATION. MY FO PERFORMED THE EXTERNAL PREFLT AND I PERFORMED THE INTERIOR FIRST FLT OF THE DAY/ACCEPTANCE CHKS. IT WAS DARK OUTSIDE BUT MY FO WAS USING A FLASHLIGHT. HE DID NOT RPT ANYTHING ABNORMAL. AFTER TKOF AND DURING CLBOUT EVERYTHING WAS NORMAL. WE LEVELED OFF AT FL330 ENRTE TO BOS. AS WE BEGAN OUR DSCNT WE ACCELERATED THROUGH APPROX MACH .83 AND I FELT A SLIGHT VIBRATION. I THOUGHT WE MAY HAVE PICKED UP A LITTLE ICE IN THE CLBOUT SO I SLOWED TO APPROX MACH .79 AND THE VIBRATION STOPPED. THE REMAINDER OF THE FLT WAS NORMAL. AFTER PARKING IN BOS AND DEPLANING PAX MY FO PERFORMED A POSTFLT EXTERIOR INSPECTION. HE INFORMED ME THAT THE ACFT WAS DAMAGED. I EXITED THE ACFT AND NOTICED THAT THE L WINGLET WAS DAMAGED AND DISTORTED. I NOTIFIED OUR COMPANY. A FEW DAYS LATER I RECEIVED A TELEPHONE CALL FROM OUR VICE PRESIDENT OF SAFETY. HE INFORMED ME THAT THE EMPLOYEES OF THE MAINT FACILITY APPARENTLY PULLED OUR ACFT OUT OF THE MAINT HANGAR AND DRAGGED OUR WINGLET ACROSS THE UNDERSIDE OF A JETSTREAM CAUSING SUBSTANTIAL DAMAGE TO THE JETSTREAM. THEY BELIEVE SINCE THE CANADAIR WAS BEING TOWED STRAIGHT, IT LIFTED THE JETSTREAM AND DID DAMAGE TO THE TOP OF OUR WINGLET. WHEN WE STARTED OUR DSCNT THE AIRFLOW STRUCK THE DAMAGED TOP OF THE WINGLET CAUSING IT TO COME APART.

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.