Individually Owned: 150,657
Corporate Owned: 137,281
General Edward Lawrence Logan Airport
Aircraft Accident/Incident Report
Boston, Massachusetts 02101
Monday, April 9, 2001 8:00 EDT
NTSB Narrative Summary Released at Completion of Accident
Delta Airlines flight 1823, a Boeing 737-800, was instructed by air traffic control (ATC) to hold short of runway 27, on taxiway D-1, while American Airlines flight 1547, a Boeing 767-200, was instructed to taxi to runway 27 via taxiway D. While taxiing, the right wing tip of the American 767 struck and substantially damaged the left elevator and horizontal stabilizer of the Delta 737. The flight crew of the Delta 737 reported that the airplane had been holding short of the runway 27 hold line, with the parking brakes set, when they felt a "violent shudder." They then looked back and observed the American 767 taxiing past them on taxiway D. The flight crew from the American 767 reported that the sun was creating a glare on the airplane's windscreen; however, they had observed the Delta 737 holding short, and the captain "felt there was more than adequate clearance to continue." According to an airport diagram, taxiway D was located on the north side of, and parallel to, runway 27. Taxiway D-1 extended at an angle to the northwest from runway 27, to taxiway D. The perpendicular distance between the taxiway D centerline and the runway 27 hold short line was 220 feet. Dimensional data provided by the manufacturer revealed that the overall wingspan of a Boeing 767-200, and the overall length of a Boeing 737-800, was approximately 156 feet, 1 inch and 124 feet, 9 inches, respectively.
NTSB Probable Cause Narrative
The Boeing 767 captain's misjudgment of the distance between his airplane and the stationary Boeing 737, which resulted in a ground collision. A factor was sunglare.
Event Information
| Type of Event | Accident |
| Event Date | 4/9/2001 |
| Event Day of the Week | Monday |
| Time of Event | 800 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Boston |
| Event State | MASSACHUSETTS |
| Event Country | -- |
| Zipcode of the event site | 02101 |
| Event Date Year | 2001 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | Yes |
| Event Location Latitude | 422151N |
| Event Location Longitude | 0710018W |
| Event Location Airport | GENERAL EDWARD LAWRENCE LOGAN |
| 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 | 0 |
| Airport Elevation | 19 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 730 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | BOS |
| Elevation of weather observation facility | 19 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | -- |
| Lowest Ceiling Height | 600 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 2.5 |
| Air Temperature at event time (in degrees celsius) | 6 |
| Dew Point at event time (in degress fahrenheit) | 6 |
| Wind Direction (degrees magnetic) | 230 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29.82 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| 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 | 271 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11274 |
| NTSB Notification Source | Delta Air Lines |
| NTSB Notification Date | Apr 9 2001 12:00AM |
| NTSB Notification Time | 940 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 2 2002 7:11AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | Logan |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N328AA | N3731T |
| NTSB Number | NYC01LA094A | NYC01LA094B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR | IFR |
| Flight plan Was Activated? | No | No |
| Damage | Minor | Substantial |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | Boeing | Boeing |
| Aircraft Model | 767-200ER | 737-832 |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | 223 | 30775 |
| Certified Max Gross Weight | 351000 | 173000 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 172 | 162 |
| Number of Engines | 2 | 2 |
| Fixed gear or retractable gear | Retractable | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness | Continuous Airworthiness |
| Date of Last Inspection | -- | Apr 1 2001 12:00AM |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | -- | 861 |
| ELT Installed | No | No |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | No | No |
| ELT Type | -- | -- |
| Aircraft Owner Name | State Street Bank and Trust Co. | DELTA AIR LINES INC |
| Aircraft Owner Street Address | 225 Asylum Street | 1775 Aviation Blvd. |
| Aircraft Owner City | Hartford | Atlanta |
| Aircraft Owner State | CT | GA |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | 06106 | 30320 |
| Operator is an individual? | No | No |
| Operator Name | AMERICAN AIRLINES INC | -- |
| Operator Same as Owner? | No | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | No | Yes |
| Operator Street Address | 4333 Amon Carter Blvd. | -- |
| Operator City | Dallas | -- |
| Operator State | TX | -- |
| Operator Country | USA | -- |
| Operator Zip code | 75261 | -- |
| Operator Code | AALA | DALA |
| 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 | Scheduled |
| Indicates Domestic or International Flight | Domestic | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger/Cargo | Passenger/Cargo |
| Type of Flying (Per_Bus / Primary) | -- | -- |
| Second Pilot on Board | Yes | Yes |
| Departure Point Same as Event | Yes | Yes |
| Departure Airport Code | BOS | BOS |
| Departure City | Boston | Boston |
| Departure State | MA | MA |
| Departure Country | USA | USA |
| Departure Time | -- | -- |
| Departure Time Zone | EDT | EDT |
| Destination Same as Local Flt | -- | -- |
| Destination Airport Code | MCO | LGA |
| Destination City | ORLANDO | Flushing |
| Destination State | FL | NY |
| Destination Country | USA | USA |
| Specific Phase of Flight | Taxi | Standing - engine(s) operating |
| Report sent to ICAO? | No | No |
| Evacuation occurred | No | No |
| Date of most recent change to record | Dec 5 2001 2:06PM | Dec 5 2001 2:06PM |
| User who most recently changed record | COXP | COXP |
| Since inspection or accident | -- | Time of Accident |
| Event Location Runway Number and Location | -- | -- |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |