Brake misassembly.
Accident investigators found that EAA maintenance staff had "...fitted restrictor pads incorrectly in one brake unit and a transfer unit in another was in it's reverse position. The result was that No.2 brake was being operated by No.1 anti skid and vice versa. This would have reduced braking efficiency slightly but No.2 rear anti skid had a rubber ring where a hydraulic coupling was fitted preventing No.2 anti skid from releasing No.1 brake, causing the tyre to burst. The cross couple would have caused a brake pressure loss of about 70% and the report cited incompetence in engineering as the cause of the failure to stop."
This is quoted from Modern Civil Airliners No.1 by Martin Hedley. Published by Ian Allan books in 1982.