NTSB CAROL · Event
Event DEN06IA068
Aircraft involved
Probable cause & findings
The ground crew's failure to retract the adjacent jetway and to verify the airplane's clearance with the jetway as it taxied.
Factual narrative
On April 23, 2006, at 1633 mountain daylight time, a Boeing 747-400, DABVN, operated by Lufthansa German Airlines and piloted by an airline transport certificated pilot, sustained minor damage when it collided with a jetway while taxiing to its gate at Denver International Airport (DEN), Denver, Colorado. Visual meteorological conditions prevailed at the time of the incident. The scheduled foreign passenger flight was being conducted under the provisions of Title 14 CFR Part 129 under an instrument flight rules flight plan. The captain, first officer, relief captain, 16 flight attendants, and 382 passengers were not injured. The transoceanic flight originated in Frankfurt, Germany, at an undetermined time, and had landed at its destination when the incident occurred. The station manager reported that Flight 446 was taxiing into gate A41. The jetway for the adjacent gate, gate A43, had not been retracted after its last usage. The airplane's number 1 engine struck the A43 jetway. An examination of the airplane revealed the number 1 engine nacelle had been scraped, dented, and punctured. Following the incident, Lufthansa revised their station manual procedures to position two additional marshalling wing walkers so as to prevent a recurrence of this type incident. The Boeing 747-400 was taxiing to the gate following landing. The adjacent jetway had not been retracted completely after it was last used. As the airplane approached its jetway, the airplane's number 1 engine struck the adjacent jetway causing scraping, dents, and puncture damage to the engine nacelle. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2006_DEN06IA068.txt.
Findings + structured fields enriched from FAA avall.mdb.
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Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2019 · Abstract
Incorporation of EGPWS in the NASA Ames Research Center 747-400 Flight Simulator
The NASA Ames Research Center CAE Boeing 747300 flight simulator is used primarily for the study of human factors in aviation safety.
- Embry-Riddle Scholarly Commons 2015 · Journal article (IJAAA)
Comparison of Aircraft Tire Wear with Initial Wheel Rotational Speed
The impact an aircraft has on its tires when it lands has been problematic practically since the invention of the airplane.
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