Charlotte – Dallas

During landing touchdown, following a stabilized approach, the right main landing gear failed. The airplane remained controllable by the pilots and came to a stop on the runway, resting on its right wing. The DFW Fire Department arrived at the accident site in 35 seconds and, following communication between the airplane's Captain and Fire Department's Incident Commander, it was decided that an emergency evacuation of the airplane was not necessary. Examination revealed that the right main gear's outer cylinder had fractured allowing the lower portion of the gear (including the wheel assembly) to separate from the airplane. Research, examination & testing of the cylinder revealed that a forging fold was introduced into the material during the first stage of its forging process. The first stage is a hand operation, therefore the quality is highly dependent on the person performing the hand operation. Following the first landing, the forging fold became a surface breaking crack, due to the normal loads imposed during landing. Although growth of the fatigue crack was suppressed by crack blunting, high load landings resulted in growth of the fatigue crack. Subsequently, the landing gear failed when the crack had reached a critical length. Additionally, the airplane's maintenance records were reviewed and no anomalies were found.

Flight / Schedule

Charlotte – Dallas

Aircraft

Fokker 100

Registration

N1419D

MSN

11402

Year of Manufacture

1992

Date

May 23, 2001 at 03:04 PM

Type

CRASH

Flight Type

Scheduled Revenue Flight

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Crash Location

Dallas-Fort Worth Texas

Region

North America • United States of America

Coordinates

32.7488°, -97.2990°

Crash Cause

Technical failure

Narrative Report

On May 23, 2001 at 03:04 PM, Charlotte – Dallas experienced a crash involving Fokker 100, operated by American Airlines, with the event recorded near Dallas-Fort Worth Texas.

The flight was categorized as scheduled revenue flight and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.

92 people were known to be on board, 0 fatalities were recorded, 92 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 4, crew fatalities: 0, passengers on board: 88, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is technical failure. During landing touchdown, following a stabilized approach, the right main landing gear failed. The airplane remained controllable by the pilots and came to a stop on the runway, resting on its right wing. The DFW Fire Department arrived at the accident site in 35 seconds and, following communication between the airplane's Captain and Fire Department's Incident Commander, it was decided that an emergency evacuation of the airplane was not necessary. Examination revealed that the right main gear's outer cylinder had fractured allowing the lower portion of the gear (including the wheel assembly) to separate from the airplane. Research, examination & testing of the cylinder revealed that a forging fold was introduced into the material during the first stage of its forging process. The first stage is a hand operation, therefore the quality is highly dependent on the person performing the hand operation. Following the first landing, the forging fold became a surface breaking crack, due to the normal loads imposed during landing. Although growth of the fatigue crack was suppressed by crack blunting, high load landings resulted in growth of the fatigue crack. Subsequently, the landing gear failed when the crack had reached a critical length. Additionally, the airplane's maintenance records were reviewed and no anomalies were found.

Aircraft reference details include registration N1419D, MSN 11402, year of manufacture 1992.

Geospatial coordinates for this crash are approximately 32.7488°, -97.2990°.

Fatalities

Total

0

Crew

0

Passengers

0

Other

0

Crash Summary

During landing touchdown, following a stabilized approach, the right main landing gear failed. The airplane remained controllable by the pilots and came to a stop on the runway, resting on its right wing. The DFW Fire Department arrived at the accident site in 35 seconds and, following communication between the airplane's Captain and Fire Department's Incident Commander, it was decided that an emergency evacuation of the airplane was not necessary. Examination revealed that the right main gear's outer cylinder had fractured allowing the lower portion of the gear (including the wheel assembly) to separate from the airplane. Research, examination & testing of the cylinder revealed that a forging fold was introduced into the material during the first stage of its forging process. The first stage is a hand operation, therefore the quality is highly dependent on the person performing the hand operation. Following the first landing, the forging fold became a surface breaking crack, due to the normal loads imposed during landing. Although growth of the fatigue crack was suppressed by crack blunting, high load landings resulted in growth of the fatigue crack. Subsequently, the landing gear failed when the crack had reached a critical length. Additionally, the airplane's maintenance records were reviewed and no anomalies were found.

Cause: Technical failure

Occupants & Outcome

Crew On Board

4

Passengers On Board

88

Estimated Survivors

92

Fatality Rate

0.0%

Known people on board: 92

Operational Details

Schedule / Flight

Charlotte – Dallas

Flight Type

Scheduled Revenue Flight

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Aircraft

Fokker 100

Registration

N1419D

MSN

11402

Year of Manufacture

1992

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