Rapports d’accident et d’incident

Part 1: Final report version 5.1

Note 1: the JNS risk control measures of the report version 5.1 of 19 October 2026 replace entirely the Agreed long term mitigation measures of 28 November 2019 from the JNS Normal Procedure “Broken Wheels” for wheels of wheel type BA 004 (“crack in the rim”) and the JNS risk control measures from the final report version 5.0, published on 10 August 2026 and all other previous versions.

The measures for “crack in the web” (wheel types BA 314 old/ZDB29) from the Agreed long term mitigation measures of 28 November 2019 from the JNS Normal Procedure “Broken Wheels” remain valid.

Version 5.1 is the currently applicable version of the report and contains editorial corrections to version 5.0. The following document identifies the differences between these two versions: Comparison document.

Part 2: Full Impact Assessment

Part 3: JNS Working Instruction Visual Inspection ECM

Part 4: JNS Wheel Analyses

Part 5: JNS list of assessed wheel types

Note 2: This list contains the wheel types that were already assessed to determine if they are comparable to wheel type BA 004  (the most recent version of list is dated 19.10.2026).

Part 1: Final report

Part 2: Light Impact Assessment

Part 1: Principles and organisation

Part 2: Action plan containing short-term risk control measures
Note:  the risk control measures identified during the Urgent Procedure have been entirely replaced by risk control measures identified in the Normal Procedure “Consequences of unintended brake applications with LL blocks”.

Part 3: Detailed information on the work of the JNS task force

Final report

Report

Final output