Boston Airport
Aircraft Accident/Incident Report

Boston, Massachusetts 02128
Saturday, October 4, 2003 14:50 EDT

NTSB Narrative Summary Released at Completion of Accident

A mechanic had parked a ground support van outside the baggage area under Gate 26, and exited the van. When he returned to the van several minutes later, it had rolled backwards and impacted a parked aircraft. Examination of the van revealed the gearshift lever was faulty, and when the 'park' detent was selected, the van was actually in 'reverse'. The operator's fleet of ground support vehicles was examined for additional faulty gearshift levers, and one vehicle was identified and removed from service. Examination of the airplane revealed a 10-inch hole, with a larger dented area in the fuselage pressure bulkhead, located on the left side of the airplane, midway between the left engine and the L1 door.

NTSB Probable Cause Narrative

The collision of a ground support vehicle with a parked aircraft, due to the faulty gearshift lever on the ground support vehicle.

Event Information

Type of Event Accident
Event Date 10/4/2003
Event Day of the Week Saturday
Time of Event 1450
Event Time Zone Eastern Daylight Time
Event City Boston
Event State MASSACHUSETTS
Event Country --
Zipcode of the event site 02128
Event Date Year 2003
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? Yes
Event Location Latitude 422151N
Event Location Longitude 0710018W
Event Location Airport Boston
Event Location Nearest Airport ID BOS
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1454 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID BOS
Elevation of weather observation facility 19
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 1300
Lowest Non-Ceiling Height 900
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) 16
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.79
Density Altitude (feet) --
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 76
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 14766
NTSB Notification Source FAA FSDO
NTSB Notification Date Oct 7 2003 12:00AM
NTSB Notification Time 1410
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 5 2004 4:26PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Logan FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N972AN
NTSB Number NYC04CA003
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Boeing
Aircraft Model 737
Aircraft Series Identifier --
Aircraft Serial Number 30097
Certified Max Gross Weight 0
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 --
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AMERICAN AIRLINES INC
Aircraft Owner Street Address --
Aircraft Owner City Dallas
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode --
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 AALR
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/Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code BOS
Departure City Boston
Departure State MA
Departure Country USA
Departure Time 1455
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code ORD
Destination City Chicago O'Hare
Destination State IL
Destination Country USA
Specific Phase of Flight Standing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 5 2003 10:36AM
User who most recently changed record PEAR
Since inspection or accident --
Event Location Runway Number and Location na
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --