Aircraft Incident/Accident Report
Denver International Airport

Denver, Colorado 80249
Wednesday, October 1, 1997 4:36 MDT

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NTSB Narrative Summary Released at Completion of Accident
As the cargo jet was taxiing for takeoff in a nonmovement area, it was struck by an airport employee shuttle bus. The airplane captain was seriously injured. Visual meteorological conditions prevailed, and the collision occurred during predawn hours. The bus driver said he stopped at the stop sign, turned on the 4-way flasher lights, and looked both ways. He saw one inbound aircraft to the right that had stopped. He did not see the airplane approaching from the left as he started across the cargo ramp. The airplane crew stated they did not see the bus until seconds before impact. Airplane skid marks, measuring 22 and 24 feet in length, were noted on the taxiway. No bus skid marks were noted on the roadway.
NTSB Probable Cause Narrative
Failure of the bus driver to yield the right of way to oncoming traffic due to his inadequate visual lookout. Factors were visibility restrictions, inadequate driver training by management, and the flight crew's inadequate visual lookout due to their attention being diverted by performing the pretakeoff checklist.
Event Information
Type of EventAccident 
Event Date10/1/1997 
Event Day of the WeekWednesday 
Time of Event436 
Event Time ZoneMountain Daylight Time 
Event CityDENVER  
Event StateCOLORADO 
Event Country-- 
Zipcode of the event site80249  
Event Date Year1997 
Event Date Month10 
MidAir Collision IndicatorNo 
On Ground Collision occurred ?No 
Event Location Latitude  
Event Location Longitude  
Event Location AirportDENVER INTERNATIONAL  
Event Location Nearest Airport IDDEN  
Indicates whether the acc/inc occurred off or on an airportOn Airport 
Distance from airport in statute miles-- 
Degrees magnetic from airport-- 
Airport Elevation5431 
Weather Briefing CompletenessNot pertinent 
Investigator's weather sourceWeather Observation Facility 
Time of the weather observation453 Mountain Daylight Time 
Direction of event from weather observation facility (degrees)
Weather Observation Facility IDDEN  
Elevation of weather observation facility5431 
Distance of event from weather observation facility (units?)
Time Zone of the weather observationMDT 
Lighting ConditionsNight/Dark 
Lowest Ceiling Height
Lowest Non-Ceiling Height
Sky/Lowest/Cloud ConditionsClear 
Sky Condition for Lowest CeilingNone 
Visibility Runway Visual Range (Feet)
Visibility Runway Visual Value (Statute Miles)
Visibility (Statute Miles) 10 
Air Temperature at event time (in degrees celsius)12 
Dew Point at event time (in degress fahrenheit)
Wind Direction (degrees magnetic)230 
Variable Wind IndicatorUnknown 
Wind Speed (knots)
Wind Velocity Indicator Unknown 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots)
Altimeter Setting at event time (in. Hg) 30 
Density Altitude (feet)6042 
Intensity of PrecipitationUnknown 
METAR weather report -- 
Event Highest InjurySerious 
On Ground, Fatal Injuries
On Ground, Minor Injuries
On Ground, Serious Injuries
Injury Total Fatal-- 
Injury Total Minor
Injury Total None
Injury Total Serious
Injury Total All
Investigating AgencyNTSB 
NTSB Docket Number (internal use)1196 
NTSB Notification Source-- 
NTSB Notification DateOct 1 1997 12:00AM 
NTSB Notification Time510 
Fiche Number and/or location -used to find docket informationIMAGE 
Date of most recent change to recordDec 8 2000 12:36PM 
User who most recently changed recorddbo  
Basic weather conditionsVisual Meteorological Cond 
FAA District Office-- 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN414EX 
NTSB NumberFTW98FA001  
Missing Aircraft Indicator
Federal Aviation Reg. PartPart 121: Air Carrier 
Type of Flight Plan filedIFR 
Flight plan Was Activated?-- 
Aircraft FireNone 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameBoeing  
Aircraft Model727-51C  
Aircraft Series Identifier727-51C  
Aircraft Serial Number18899  
Certified Max Gross Weight170000 
Aircraft CategoryAirplane 
Aircraft Registration ClassU.S. Registered/U.S. Soil 
Aircraft is a homebuilt?No 
Flight Crew Seats-- 
Cabin Crew Seats-- 
Passenger Seats-- 
Total number of seats on the aircraft
Number of Engines
Fixed gear or retractable gearRetractable 
Aircraft, Type of Last InspectionContinuous Airworthiness 
Date of Last InspectionSep 30 1997 12:00AM 
Airframe hours since last inspection14 
Airframe Hours47098 
ELT InstalledNo 
ELT ActivatedUnknown 
ELT Aided Location of Event SiteUnknown 
ELT Type-- 
Aircraft Owner Street Address3350 W. BAYSHORE RD.  
Aircraft Owner CityPALO ALTO  
Aircraft Owner StateCA 
Aircraft Owner Country-- 
Aircraft Owner Zipcode94303  
Operator is an individual?No 
Operator Same as Owner?No 
Operator Is Doing Business As-- 
Operator Address Same as Owner?No 
Operator Street Address6810 W. KELLOGG  
Operator CityWICHITA  
Operator StateKS 
Operator Country-- 
Operator Zip code67209  
Operator CodeRYNA 
Owner has at least one certificate-- 
Other Operator of large aircraft?-- 
Certified for Part 133 or 137 Operation-- 
Operator Certificate Number-- 
Indicates whether an air carrier operation was scheduled or notNon-scheduled 
Indicates Domestic or International FlightDomestic 
Operator carrying Pax/Cargo/MailCargo 
Type of Flying (Per_Bus / Primary)-- 
Second Pilot on BoardYes 
Departure Point Same as EventYes 
Departure Airport CodeDEN  
Departure City  
Departure State  
Departure Country  
Departure Time
Departure Time Zone  
Destination Same as Local Flt-- 
Destination Airport CodeSFO  
Destination CitySAN FRANCISCO  
Destination StateCA 
Destination Country  
Specific Phase of FlightTaxi 
Report sent to ICAO?-- 
Evacuation occurred-- 
Date of most recent change to recordMar 17 2004 2:22PM 
User who most recently changed recordNTSB\HAMG  
Since inspection or accident-- 
Event Location Runway Number and Location0  
Runway Length-- 
Runway Width-- 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--