Maintenance Error Caused American Airlines 737 Runway Incident

NTSB final report says misconnected brake hoses and wiring led to reduced braking during DFW landing.

Ryan Ewing

Tuesday, November 11, 2025 at 04:39 PM ET

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Ryan Ewing

An American 737 at Dallas/Fort Worth [Credit: AirlineGeeks/William Derrickson]

Key Takeaways:

An American Airlines Boeing 737-800 overran a runway at Dallas/Fort Worth International Airport due to a loss of braking effectiveness.
The National Transportation Safety Board (NTSB) determined the probable cause was improper maintenance during a brake system modification, specifically misconnected hydraulic hoses and transducer wiring that reversed anti-skid functions.
A contributing factor was the lack of a functional check to verify correct connections after the modification.
Both American Airlines and Boeing have since implemented revised procedures, including labeling requirements, inspector verification, operational tests, and updated manuals, to prevent similar maintenance errors.

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The National Transportation Safety Board has determined that improper maintenance during a brake system modification led to an American Airlines Boeing 737-800 overrunning a runway at Dallas/Fort Worth International Airport (KDFW) last year.

According to the final report released Friday, the February 10, 2024, incident occurred when Flight 1632 from Ronald Reagan Washington National Airport (KDCA) landed on Runway 17L and experienced a loss of braking effectiveness.