NTSB CAROL · Event
Event DCA11CA014
Aircraft involved
Probable cause & findings
the failure of the ground operations personnel to maintain awareness of the relative position of the two airplanes.
Factual narrative
On December 18, 2010, at 1100 eastern standard time, a Boeing 737-700, registration number N913WN, operated by Southwest Airlines as flight 2592 to Fort Lauderdale, Florida, collided with a Boeing 737-300, registration number N650SW, operated by Southwest Airlines as flight 3944 to Tampa, Florida, during pushback from the gate at Philadelphia International Airport, Philadelphia, PA. The left wing and horizontal stabilizer of N913WN contacted the right winglet and horizontal stabilizer of N650SW. N650SW had been previously pushed back and awaiting taxi clearance at the time of the incident. The tug operator reported he looked away at an uninvolved airplane and when he looked back, the wing walker was signalling him to stop, but he was unable to stop prior to impact. N913WN was substantially damaged due to the impact to the wing spar. N650SW had minor damage. There were no injuries to the 10 total crew members, 215 total passengers, and 2 ground operations personnel. On December 18, 2010, at 1100 eastern standard time, a Boeing 737-700, registration number N913WN, operated by Southwest Airlines as flight 2592 to Fort Lauderdale, Florida, collided with a Boeing 737-300, registration number N650SW, operated by Southwest Airlines as flight 3944 to Tampa, Florida, during pushback from the gate at Philadelphia International Airport, Philadelphia, PA. The left wing and horizontal stabilizer of N913WN contacted the right winglet and horizontal stabilizer of N650SW. N650SW had been previously pushed back and awaiting taxi clearance at the time of the incident. The tug operator reported he looked away at an uninvolved airplane and when he looked back, the wing walker was signalling him to stop, but he was unable to stop prior to impact. N913WN was substantially damaged due to the impact to the wing spar. N650SW had minor damage. There were no injuries to the 10 total crew members, 215 total passengers, and 2 ground operations personnel. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Action/decision-Action-Incorrect action performance-Ground crew - C
- C Personnel issues-Task performance-(general)-(general)-Ground crew - C
Verbatim from NTSB's published report. Source file
NTSB_2010_DCA11CA014.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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