NTSB CAROL · Event
Event NYC04CA003
Registry · N972AN
FAA Aircraft Registry record.
Make / Model
BOEING 737-823
Year of manufacture
2001 · 2 years old at event
Engine
CFM INTL. CFM56-7B
Seats / Engines
162 seats · 2 engines
Last airworthiness date
20070828
ADS-B equipped
Yes — Mode-S AD8B20
Registrant of record
AMERICAN AIRLINES INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The collision of a ground support vehicle with a parked aircraft, due to the faulty gearshift lever on the ground support vehicle.
Factual narrative
On October 4, 2003, at 1450 eastern daylight time, a Boeing 737, N972AN, operated by American Airlines Inc., as flight 847, was substantially damaged while parked at Gate 26, when it was struck by an unoccupied ground support van, operated by American Eagle Inc., at the General Edward Lawrence Logan International Airport (BOS), Boston, Massachusetts. The 2 flightcrew members, 4 flight attendants, and 70 passengers were not injured. Visual meteorological conditions prevailed, and an instrument flight rules flight plan had been filed for the flight that was destined for the Chicago O'Hare International Airport (ORD), Chicago, Illinois. The scheduled passenger flight was to be conducted under 14 CFR Part 121. According to personnel at American Eagle, a mechanic had parked the 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. Massachusetts State Police and Massport officials examined the van and determined that the gearshift lever was faulty. When the 'park' detent was selected, the van was actually in 'reverse'. Representatives from American Eagle then examined all ground support vehicles in their fleet to identify any additional faulty gearshift levers. During the inspection, one vehicle was identified as faulty, and removed from service. Examination of the airplane by a Federal Aviation Administration inspector 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. 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. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2003_NYC04CA003.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
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 · Technical Memorandum (TM)
A preliminary study of a wake vortex encounter hazard boundary for a B737-100 airplane
A preliminary batch simulation study was conducted to define the wake decay required for a Boeing 737-100 airplane to safely encounter a Boeing 727 wake and land.
- NASA NTRS 2018 · Other
A Numerical Simulation Study to Develop an Acceptable Wake Encounter Boundary for a B737-100 Airplane
The National Aeronautics and Space Administration (NASA) is conducting research with the goal of enabling safe improvements in the capacity of the nation's air transportation system.
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- arXiv 2023 · arXiv preprint
Radar detection of wake vortex behind the aircraft: the detection range problem
In this study, we showcased the detection of the wake vortex produced by a medium aircraft at distances exceeding 10 km using an X-band pulse-Doppler radar.
- Embry-Riddle Scholarly Commons 2023 · Conference paper
Airline Pilot Risk Profiling by Using Unstable Approach Management Case
Risk and human decision-making cannot be separated from each other. Many of theories and studies have tried to analyze pilots’ decision-making processes, risk factors, and preference behavior in the a…
- Embry-Riddle Scholarly Commons 2023 · Journal article (IJAAA)
Historical Research and the case for a Fifth Component of SMS
Abstract Three tragic events from aviation history were examined using a Historical Research and Case Study Method. The events explored were the disasters of the Airship R101 (1930), the Space Shuttle…
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