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:

The NTSB determined that improper maintenance during a brake system modification led to an American Airlines Boeing 737-800 overrunning a runway at DFW due to a loss of braking effectiveness.
Investigators found maintenance personnel mistakenly swapped flexible hydraulic hoses and cross-connected anti-skid system wiring, preventing proper brake function.
A contributing factor to the incident was the lack of a functional check to verify the correct connection of these hydraulic hoses and transducer wiring.
Following the event, both American Airlines and Boeing implemented revised procedures, including new labeling requirements and operational tests, 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.