The Government of Mexico City reported that it requested the rescission of the contract it had with DNV Energy Systems México, the firm in charge of carrying out the expert reports on the collapse of Line 12, for failing to comply with the technical criteria in the last installment of the report, in addition to file a civil lawsuit against the company.
DNV confirmed the delivery of the third report of the Root Cause Analysis (RCA) to the local government on February 28 —which has not been revealed by the authorities— and through a statement indicated that it was carried out by an international team of experts according to with the agreed methodology and with strict internal quality procedures. However, this has not been revealed by the authorities.
However, Claudia Sheinbaum Pardo, head of government of the country’s capital, explained that said report was reviewed by the Technical Group of the capital government, which determined that the technical criteria were not met, which resulted in a report “badly executed, with problems technical, tendentious and false”.
Among the deficiencies found by the working group are the lack of alternative hypotheses and the reasons for their rejection, the absence in the model of a more detailed analysis of fatigue induced by distortion and the lack of explanation about the exclusion of the “span”. mirror” as an empirical and analytical reference, the above in technical terms.
Regarding the methodological aspect, the reason why the Root-Cause analysis was not carried out following its own methodology was pointed out, as well as the justification for not having included the SCAT analysis of each barrier, as well as the use of a Root-Cause definition. which does not come from the BSCAT methodology.
And, finally, an explanation of why the causes established in its own Technical Opinion (lack of bolts and non-compliance with design) are confused with barriers.
“For this reason, we started this contract termination procedure and civil lawsuit against the company, and it is part of this use made by adversaries, which has no morals, no ethics,” explained the local president.
Similarly, it was confirmed that a detailed report of said errors was made, which was sent to the company showing that they do not comply with their own methodology.
Conflict of interests
This final report was delivered fully in accordance with the contractual requirements, on time and complete. DNV confirms that the report was prepared without the participation of any expert who could have a conflict of interest,” the firm said.
Given this, the head of government abounded that in this latest opinion appears a lawyer who has litigated against the president, Andrés Manuel López Obrador, and who has a history linked to the government of former president, Enrique Peña Nieto.
The international firm stated that it supports the methodology used, the findings and the conclusions of the Root Cause Analysis of the incident on Metro Line 12.
It should be noted that this last opinion had several delays in delivery. According to official dates, it was scheduled for September 30 last year. However, the Norwegian company argued that it needed more time to continue with the investigation.
Not only was the third report delayed, the second, which was scheduled for August 23, was delivered until September 7.