A commercial fixed wing large transport after pushback from the gate, the towbar was disconnected wi...

Attributes
ACN	400873
Time
Date	199804
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : san
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 207 flight time total : 3400 flight time type : 1000
ASRS Report	400873
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During pushback from gate xa, ground control cleared us to push onto zz taxiway to remain clear of taxiway xy. Pushback and tow forward to allow company aircraft into gate. We were cleared to start engines after brake release. I monitored ground while starting the left engine. During start I noticed a lot of noise by the nose gear. I asked the captain if the brakes were set. He replied, 'no, he did not tell me to set brakes.' after starting the right engine I began monitoring flight interphone as there still was a lot of noise. Then I heard 'set brakes.' after the captain's response there was nothing for about 1 min. Then the pushback man told us to pull back into the gate as the aircraft rolled onto the towbar and they want to check for damage. The next thing we saw was a guide man trying to marshall us. We did not know if the guy disconnected his headset. After finding out from operations that he did, we started to taxi but stopped after only a few ft, as the plane would not turn. Another call to operations, then the steering pin was removed. We taxied to the gate. No other communication came until they asked us to call for pushback. Operations then got involved (they were equally uninformed) and told us there was only chipped paint. The second pushback, taxi out, and takeoff were uneventful. There was little or no communication from the ground crew. They failed to adhere to company sops.

Original NASA ASRS Text

Title: A COMMERCIAL FIXED WING LGT AFTER PUSHBACK FROM THE GATE, THE TOWBAR WAS DISCONNECTED WITHOUT SETTING THE ACFT PARKING BRAKES THE ACFT ROLLED FORWARD STRIKING THE TOWBAR.

Narrative: DURING PUSHBACK FROM GATE XA, GND CTL CLRED US TO PUSH ONTO ZZ TXWY TO REMAIN CLR OF TXWY XY. PUSHBACK AND TOW FORWARD TO ALLOW COMPANY ACFT INTO GATE. WE WERE CLRED TO START ENGS AFTER BRAKE RELEASE. I MONITORED GND WHILE STARTING THE L ENG. DURING START I NOTICED A LOT OF NOISE BY THE NOSE GEAR. I ASKED THE CAPT IF THE BRAKES WERE SET. HE REPLIED, 'NO, HE DID NOT TELL ME TO SET BRAKES.' AFTER STARTING THE R ENG I BEGAN MONITORING FLT INTERPHONE AS THERE STILL WAS A LOT OF NOISE. THEN I HEARD 'SET BRAKES.' AFTER THE CAPT'S RESPONSE THERE WAS NOTHING FOR ABOUT 1 MIN. THEN THE PUSHBACK MAN TOLD US TO PULL BACK INTO THE GATE AS THE ACFT ROLLED ONTO THE TOWBAR AND THEY WANT TO CHK FOR DAMAGE. THE NEXT THING WE SAW WAS A GUIDE MAN TRYING TO MARSHALL US. WE DID NOT KNOW IF THE GUY DISCONNECTED HIS HEADSET. AFTER FINDING OUT FROM OPS THAT HE DID, WE STARTED TO TAXI BUT STOPPED AFTER ONLY A FEW FT, AS THE PLANE WOULD NOT TURN. ANOTHER CALL TO OPS, THEN THE STEERING PIN WAS REMOVED. WE TAXIED TO THE GATE. NO OTHER COM CAME UNTIL THEY ASKED US TO CALL FOR PUSHBACK. OPS THEN GOT INVOLVED (THEY WERE EQUALLY UNINFORMED) AND TOLD US THERE WAS ONLY CHIPPED PAINT. THE SECOND PUSHBACK, TAXI OUT, AND TKOF WERE UNEVENTFUL. THERE WAS LITTLE OR NO COM FROM THE GND CREW. THEY FAILED TO ADHERE TO COMPANY SOPS.

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.

A commercial fixed wing large transport after pushback from the gate, the towbar was disconnected without setting the aircraft parking brakes the aircraft rolled forward striking the towbar.