During pushback aircraft struck an aircraft on an adjacent gate.

Attributes
ACN	1318393
Time
Date	201512
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Large Transport
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Large Transport
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 240
Person 2
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 133
Events
Anomaly	Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy Ground Event / Encounter Aircraft

Narrative:

Aircraft was cleared to push from gate. ATC asked us to push deep behind [adjacent] gate to allow for aircraft to enter our gate. Pushback crew completed 90 degrees pushing turn. I noticed the aircraft had gone beyond 90 degrees and was deviating from the taxi line at almost the same moment the aircraft shook and came to a stop. I aborted the number one engine start at that moment and shut down the number two engine moments later. After stopping; the tug driver stated that he might have hit something; but from the cockpit we had no visibility of the impact. We were told that in fact we had collided with the parked aircraft at [adjacent] gate. The decision was made not to move the aircraft and the passengers were deplaned on the taxiway after coordinating with airport operations. I was not aware whether this was a three person push; but it seems that if a 90 degree turn is required than the push crew should always have two wing walkers.

Original NASA ASRS Text

Title: During pushback aircraft struck an aircraft on an adjacent gate.

Narrative: Aircraft was cleared to push from gate. ATC asked us to push deep behind [adjacent] gate to allow for aircraft to enter our gate. Pushback Crew completed 90 degrees pushing turn. I noticed the aircraft had gone beyond 90 degrees and was deviating from the taxi line at almost the same moment the aircraft shook and came to a stop. I aborted the number one engine start at that moment and shut down the number two engine moments later. After stopping; the tug driver stated that he might have hit something; but from the cockpit we had no visibility of the impact. We were told that in fact we had collided with the parked aircraft at [adjacent] gate. The decision was made not to move the aircraft and the Passengers were deplaned on the taxiway after coordinating with airport operations. I was not aware whether this was a three person push; but it seems that if a 90 degree turn is required than the push crew should always have two wing walkers.

Data retrieved from NASA's ASRS site 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.