THE National Bureau of Investigation (NBI) said on Wednesday that there were no mechanical or electrical defects that may have led to the decoupling incident at the Metro Rail Transit-3 (MRT-3) in November, an official said.
“Initially, ang findings namin ay walang defect as far as the mechanical aspects are concerned,” said lawyer Joel Tovera, NBI chief of the Special Action Unit.
The decoupling incident happened on November 16 when the third car of a train headed northbound got detached from the two front cars between the Ayala and Buendia stations, leaving behind 140 passengers.
Although no one was reportedly injured, the passengers were forced to walk on the railway toward the Buendia Station.
Tavera added that they would look deeper into the possibility of human intervention.
The five mechanical and electrical defects that could cause a decoupling were:
1. Lack of current transmission
2. Short circuits
3. Scorched cables
4. Chafed cables
5. Faulty alignment
“We are not discounting the possibility na may sabotahe nga. But we cannot divulge the names of the persons of interest,” Tavera said.
Resigned Transportation Undersecretary Cesar Chavez said that the Department of Transportation (DOTr) and the MRT would not intervene with the results of the investigation.
“We thank the NBI for immediately forming a team of investigators (for the operation). [The] DOTr and MRT will no longer make any statement regarding the investigation,” Chavez said.
He raised the possibility of sabotage after initial investigation on November 22 revealed that the Messma Card or the black box of the decoupled coach was missing.
The black box is responsible for “recording all applied interventions” such as the speed and performance of the train.
MRT-3 Director for Operations Mike Capati added that there would be more investigations before the year ends.
“The result of the reported readings of the Messma card will also be evaluated by the forensic experts para makumpleto ang investigation [so that the investigation would be completed],” he said.