Overview
- PAN legislators Ernesto Sánchez, Reyna Tamayo and Sen. Mayuli Martínez submitted the Aug. 31 complaint accusing Javier May Rodríguez of responsibility for the recent incident on Tramo 3.
 - Federal officials describe the event as a technical switch anomaly rather than a derailment, with Train 304’s fourth car tilting against a stopped train after a bogie deviation.
 - The Fiscalía General de la República has an open investigation, and forensic experts are evaluating causes and damages.
 - The complaint references ASF findings of improper payments, including MXN 10.1 million linked to perimeter fencing, MXN 461,541 for structural differences and MXN 140,461 for arithmetic errors.
 - PAN also alleges overcosts exceeding MXN 155 million on Tramo 3 contracts and claims MXN 5,807 million in operating losses with a MXN 12 million daily subsidy, while no criminal determinations have been announced.