NTSB CAROL · Event
Event DEN05IA084
Aircraft involved
Probable cause & findings
The improper procedures conducted by the ground personnel and the flight crew's failure to coordinate procedures with the ground personnel during push back operation which resulted in the collision between the ground support vehicle and the airplane. A contributing factor was the inadequate communication between the flight crew and ground crew during the push back operation.
Factual narrative
On May 30, 2005, at 0847 mountain daylight time, a de Havilland DHC-8-202, N454YV, operated by Mesa Airlines, Inc., as United Express Flight 7080, rode onto the top of the Lektro ground support vehicle during push back from the gate at the Denver International Airport (DEN), Denver, Colorado. The airplane was not damaged, and the ground support vehicle was damaged under the airplane nose wheels. Visual meteorological conditions prevailed at the time of the incident. The scheduled domestic passenger flight was being conducted on an instrument flight rules flight plan under the provisions of Title 14 Code of Federal Regulations Part 121. The captain, first officer, flight attendant, and 37 passengers on board were not injured. The flight was originating at the time of the incident and was destined for Gunnison, Colorado. According to the Mesa Airlines captain and SkyWest supervisor written statements, the aircraft was parked at the gate awaiting push back by SkyWest Airlines ground personnel. Two ground personnel (one supervisor, one trainee) were operating the Lektro ground support vehicle. During initial push back, the trainee turned the aircraft in the wrong direction, at which time, the supervisor took over control of the vehicle. During the supervisor's attempt to turn the aircraft around, the nose wheels rolled out of the vehicle's wheel cradle and up onto the Lektro vehicle. The aircraft was stabilized by Mesa maintenance personnel, and the crew and passengers deplaned without further incident. A SkyWest employee reported that she overheard a Mesa crewmember report to dispatch that the ground personnel was making a sharp turn and the crewmember thought the airplane was going to be pushed back into another airplane. At that point, the nose wheel slipped out of the craddle onto the ground support vehicle. According to a SkyWest internal report, the Mesa captain indicated that he had a safety concern about hitting another aircraft during pushback. The report stated the push back operation should have come to a stop and communication should have been conducted between the flight crew and ground crew to resolve all concerns about safe maneuvers. Examination of the aircraft by Mesa maintenance personnel revealed no damage. Per the manufacturer's recommendation, the nose gear assembly was removed and replaced, and the aircraft was returned to service. During initial pushback, the trainee operating the ground support vehicle, turned the aircraft in the wrong direction, at which time, the supervisor took over control of the vehicle. During the supervisor's attempt to turn the aircraft around, the nose wheels rolled out of the vehicle's wheel cradle and up onto the ground support vehicle. An employee reported she overheard one of the flight crewmembers report to dispatch that the ground personnel was making a sharp turn and the crewmember thought the airplane was going to be pushed back into another airplane. The company which provided the ground support personnel stated the push back operation should have come to a stop and communication should have been conducted between the flight crew and ground crew to resolve all concerns about safe maneuvers. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2005_DEN05IA084.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
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- Semantic Scholar 2025 · Article (Applied Sciences)
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The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
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In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Just Culture in Aviation: A Metaphorical Study on Aircraft Maintenance Students
Just Culture, a sub-dimension of safety culture, has been a prominent and debated topic in aviation safety in recent years.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Performance PRISM: A Comprehensive Framework For Performance Measurement In Aircraft Maintenance
Aircraft maintenance is governed by rigorous safety requirements and high operational complexity, demanding robust performance measurement frameworks to ensure optimal maintenance practices.
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