Narrative:

The tug that was pushing aircraft contacted the aircraft nose radome causing 10 inch gash in the radome. Incident occurred as tug was attempting to turn the aircraft during the pushback. Ground to cockpit communications seemed to indicate that the tug door swung open during turn possibly due to jet blast from a nearby aircraft. We remained parked with 2 engines running, APU inoperative, until door could be dislodged by ground crew. Approximately 20 mins later, aircraft was towed back to gate and passenger disembarked. Engines remained on until external power was applied at gate. External power dropped off-line after engines were shut down resulting in dark aircraft/emergency exit lights illuminated. External power was regained with little delay and no resulting complications from illuminated emergency exit lights. Passenger disembarked with no problems through forward entry door to jetbridge. Supplemental information from acn 446359: location: yyz ramp. While being pushed back from gate at yyz the left door of the tug which was pushing the aircraft swung open and wedged between the tug and the aircraft. The tug then turned causing the door to dent and puncture the lower radome area of the aircraft. We (the flight crew) were unaware of what happened until we were notified by the ground crew. We then contacted maintenance and dispatch and the aircraft was taken OTS.

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Original NASA ASRS Text

Title: A B727 CAPT AND FO EACH SUBMITTED A RPT DESCRIBING HOW A TUG PUSHING THEIR ACFT BACK AT CYYZ ACCIDENTALLY CAUSED A 10 INCH GASH IN THE RADOME.

Narrative: THE TUG THAT WAS PUSHING ACFT CONTACTED THE ACFT NOSE RADOME CAUSING 10 INCH GASH IN THE RADOME. INCIDENT OCCURRED AS TUG WAS ATTEMPTING TO TURN THE ACFT DURING THE PUSHBACK. GND TO COCKPIT COMS SEEMED TO INDICATE THAT THE TUG DOOR SWUNG OPEN DURING TURN POSSIBLY DUE TO JET BLAST FROM A NEARBY ACFT. WE REMAINED PARKED WITH 2 ENGS RUNNING, APU INOP, UNTIL DOOR COULD BE DISLODGED BY GND CREW. APPROX 20 MINS LATER, ACFT WAS TOWED BACK TO GATE AND PAX DISEMBARKED. ENGS REMAINED ON UNTIL EXTERNAL PWR WAS APPLIED AT GATE. EXTERNAL PWR DROPPED OFF-LINE AFTER ENGS WERE SHUT DOWN RESULTING IN DARK ACFT/EMER EXIT LIGHTS ILLUMINATED. EXTERNAL PWR WAS REGAINED WITH LITTLE DELAY AND NO RESULTING COMPLICATIONS FROM ILLUMINATED EMER EXIT LIGHTS. PAX DISEMBARKED WITH NO PROBS THROUGH FORWARD ENTRY DOOR TO JETBRIDGE. SUPPLEMENTAL INFO FROM ACN 446359: LOCATION: YYZ RAMP. WHILE BEING PUSHED BACK FROM GATE AT YYZ THE L DOOR OF THE TUG WHICH WAS PUSHING THE ACFT SWUNG OPEN AND WEDGED BTWN THE TUG AND THE ACFT. THE TUG THEN TURNED CAUSING THE DOOR TO DENT AND PUNCTURE THE LOWER RADOME AREA OF THE ACFT. WE (THE FLC) WERE UNAWARE OF WHAT HAPPENED UNTIL WE WERE NOTIFIED BY THE GND CREW. WE THEN CONTACTED MAINT AND DISPATCH AND THE ACFT WAS TAKEN OTS.

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.