# NTSB DCA01MA064: Boeing 757-200, N644AA, Arlington, VA, September 11, 2001

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Major investigation · Final report
- Date: September 11, 2001
- Place: Arlington, VA
- Coordinates: 38.889842, -77.099327 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8898&lon=-77.0993&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 64 fatal
- Status: Completed, report March 7, 2006
- Report: Approved by Office Director
- NTSB office: Major Investigations Division
- NTSB case key (mKey): 53529
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA01MA064
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53529/pdf
- Page: https://openairdocs.org/ntsb/DCA01MA064

## Probable cause

The Safety Board did not determine the probable cause and does not plan to issue a report or open a public docket.  The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation.  The Safety Board provided requested technical assistance to the FBI, and any material generated by the NTSB is under the control of the FBI.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with terrain/water, cruise
  - hijacking - performed, passenger (cause)

## Analysis

The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation.  The Safety Board provided requested technical assistance to the FBI, and any material generated by the NTSB is under the control of the FBI.  The Safety Board does not plan to issue a report or open a public docket.

## Factual narrative

The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation.  The Safety Board provided requested technical assistance to the FBI, and any material generated by the NTSB is under the control of the FBI.  The Safety Board does not plan to issue a report or open a public docket.

## Aircraft

- Registration: [N644AA](https://openairdocs.org/deregistered/N644AA-2002-01-14), registration cancelled 2002-01-14, S/N 24602, built 1991 (OpenAirDocs)
- Reported make and model: Boeing 757-200
- Registry model: [Boeing 757-223](https://openairdocs.org/model/boeing-757-223) (registry code 1384957) (OpenAirDocs)
- Registry engine: [Rolls-Royce RB-211 series](https://openairdocs.org/engine/rolls-royce-rb-211-series) (registry code 54555, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Damage: Destroyed
- Flight: Part 121
- Operator: American Airlines
- Departed: IAD, WASHINGTON, DC
- Destination: LAX, LOS ANGELES, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; injuries: fatal; airline transport, commercial; airplane ratings: multi-engine land; seat: left
- Co-pilot; injuries: fatal; commercial, airline transport; airplane ratings: multi-engine land; seat: right

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20010911028569A](https://openairdocs.org/incident/20010911028569A), Sep 11, 2001: Boeing 757223, Washington, DC, Destroyed, 68 fatal. (-23) American airlines flight #77 was hijacked by terrorists after departure from iad en route to lax. The aircraft was then crashed into the pentagon. The…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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