Indianapolis International Airport
Aircraft Accident/Incident Report

Indianapolis, Indiana 46241
Sunday, September 23, 2001 19:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane rolled forward when it was disconnected from its tow, pinning and seriously injuring a wing walker. Hand signals were being used rather than headphones during the night push back. The wing walker stated that the hand signal to set brakes was given to the captain who in turn returned the set brakes hand signal. According to the captain, the last hand signal that he saw was to start engines. After starting the number one engine, the first officer felt the airplane move forward. The first officer stated that he asked the captain if the parking brake was supposed to be set at which time the captain looked down and set it. The tug driver signaled a problem and the engine was shut down. The airplane's Before Start Checklist stipulates the setting of the parking brake before engine start.

NTSB Probable Cause Narrative

the inadequate crew/group coordination and the parking brakes not set by the pilot in command.

Event Information

Type of Event Accident
Event Date 9/23/2001
Event Day of the Week Sunday
Time of Event 1930
Event Time Zone Central Daylight Time
Event City Indianapolis
Event State INDIANA
Event Country --
Zipcode of the event site 46241
Event Date Year 2001
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Indianapolis International
Event Location Nearest Airport ID IND
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 797
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1921 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID IND
Elevation of weather observation facility 794
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CDT
Lighting Conditions Night
Lowest Ceiling Height 3800
Lowest Non-Ceiling Height 3100
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29.89
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries 1
Injury Total Fatal --
Injury Total Minor --
Injury Total None 40
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 12734
NTSB Notification Source United Airlines
NTSB Notification Date Sep 26 2001 12:00AM
NTSB Notification Time 1230
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 1 2003 4:20PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Indianapolis FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N570UA
NTSB Number CHI01LA331
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? No
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Boeing
Aircraft Model 757-222
Aircraft Series Identifier --
Aircraft Serial Number 26678
Certified Max Gross Weight 241000
Aircraft Category Airplane
Aircraft Registration Class U.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 191
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection May 14 2001 12:00AM
Airframe hours since last inspection 1321
Airframe Hours 31142
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name United Airlines
Aircraft Owner Street Address PO Box 66100
Aircraft Owner City Chicago
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 60666
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code UALA
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 not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board --
Departure Point Same as Event Yes
Departure Airport Code IND
Departure City Indianapolis
Departure State IN
Departure Country USA
Departure Time 1915
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code ORD
Destination City Chicago
Destination State IL
Destination Country USA
Specific Phase of Flight Taxi - pushback/tow
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Dec 12 2002 8:58AM
User who most recently changed record SULP
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --