|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : phl.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||A320|
|Operating Under FAR Part||Part 121|
|Flight Phase||ground : parked|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Anomaly||non adherence : company policies|
non adherence : published procedure
other anomaly other
|Independent Detector||other other : 3|
Maintenance Human Performance
|Primary Problem||Maintenance Human Performance|
When coming upstairs to jetway door, I was approached by a ramp worker and was told the APU was inoperative and that I would need an air start. I agreed. He said he was the only one here to do that because a co-worker called in sick, so it would take a little longer to do things. There was precipitation falling and the ramp was wet. We started #1 engine at the gate. When all externals were disconnected, we received clearance to push back from the gate into the alley. All SOP's were followed. We were backed into the alley and then the ramp worker operating the tug started to pull us forward to the line. As we were moving forward slowly, there was a rumbling sound and vibration. The aircraft started to move off to the right side of the ramp. I could not see the tug or any other workers. I asked if everything was ok but could not get an answer. I did not want to apply brakes for fear of damage to nose gear, since the tug was supposedly still pulling the aircraft. Finally, the tug driver yelled through the headset to set the brakes. I did so fairly abruptly. I asked if everything was ok, but no answer. Then I was told by the tug driver there was a brake problem or something with the tug. The tug driver could not detach the tow bar. He had a mechanic come out to help him detach the bar. I asked for the mechanic to inspect the nose gear. I was told that everything looked good and we were good to go. I noticed as tug was pulling away that the tow bar was severely bent. The tug driver said he was ok but a little shaken up. We continued on to ord uneventfully.
Original NASA ASRS Text
Title: AN A320 CAPT RPTED THAT THE TUG BEING USED FOR THE PUSHBACK AT PHL HAD A MECHANICAL PROB DURING WHICH THE CAPT WAS UNABLE TO COMMUNICATE WITH THE TUG DRIVER IN A TIMELY FASHION.
Narrative: WHEN COMING UPSTAIRS TO JETWAY DOOR, I WAS APCHED BY A RAMP WORKER AND WAS TOLD THE APU WAS INOP AND THAT I WOULD NEED AN AIR START. I AGREED. HE SAID HE WAS THE ONLY ONE HERE TO DO THAT BECAUSE A CO-WORKER CALLED IN SICK, SO IT WOULD TAKE A LITTLE LONGER TO DO THINGS. THERE WAS PRECIP FALLING AND THE RAMP WAS WET. WE STARTED #1 ENG AT THE GATE. WHEN ALL EXTERNALS WERE DISCONNECTED, WE RECEIVED CLRNC TO PUSH BACK FROM THE GATE INTO THE ALLEY. ALL SOP'S WERE FOLLOWED. WE WERE BACKED INTO THE ALLEY AND THEN THE RAMP WORKER OPERATING THE TUG STARTED TO PULL US FORWARD TO THE LINE. AS WE WERE MOVING FORWARD SLOWLY, THERE WAS A RUMBLING SOUND AND VIBRATION. THE ACFT STARTED TO MOVE OFF TO THE R SIDE OF THE RAMP. I COULD NOT SEE THE TUG OR ANY OTHER WORKERS. I ASKED IF EVERYTHING WAS OK BUT COULD NOT GET AN ANSWER. I DID NOT WANT TO APPLY BRAKES FOR FEAR OF DAMAGE TO NOSE GEAR, SINCE THE TUG WAS SUPPOSEDLY STILL PULLING THE ACFT. FINALLY, THE TUG DRIVER YELLED THROUGH THE HEADSET TO SET THE BRAKES. I DID SO FAIRLY ABRUPTLY. I ASKED IF EVERYTHING WAS OK, BUT NO ANSWER. THEN I WAS TOLD BY THE TUG DRIVER THERE WAS A BRAKE PROB OR SOMETHING WITH THE TUG. THE TUG DRIVER COULD NOT DETACH THE TOW BAR. HE HAD A MECH COME OUT TO HELP HIM DETACH THE BAR. I ASKED FOR THE MECH TO INSPECT THE NOSE GEAR. I WAS TOLD THAT EVERYTHING LOOKED GOOD AND WE WERE GOOD TO GO. I NOTICED AS TUG WAS PULLING AWAY THAT THE TOW BAR WAS SEVERELY BENT. THE TUG DRIVER SAID HE WAS OK BUT A LITTLE SHAKEN UP. WE CONTINUED ON TO ORD UNEVENTFULLY.
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.