According to the NTSB, they will hold a board meeting on 6/25/24 at 9:30 AM, to discuss, determine, and announce the cause of the East Palestine derailment. They have not yet determined any cause, including the theoretical cause being the failing bearing.
So the MV Dali losing power is still a possible cause for East Palestine?
The information I posted comes directly from the NTSB by phone today. I have no way of knowing what they will conclude about the cause. But for now, they say the cause has not yet been determined.
The FRA is also conducting an investigation of the East Palestine derailment, and as I understand, they are expecting to release their report after the NTSB releases theirs in June.
At the present, the NTSB has already released what would appear to support a conclusion that the derailment was caused by the failing bearing. Although, I find nothing that actually states that to be the cause. I also understand their position at this time as being that they have not determined the cause of the derailment.
But they have published a group of captioned photos that show a wheelset with one journal wrung off, as happens when a bearing incurs damage during overheating to the point of losing its ability to support its load. Photos also show the journal, the bearing assembly, and the roller cage, all of which are heavily damaged from being heated to the point of softening.
As I understand it, the bearing passed two detectors that showed a rising heat trend, but neither required any action to stop and inspect the car that was experiencing this trend. Upon reaching East Palestine, the detector there required the train to be immediately stopped and inspected. Apparently, the train derailed 30-90 seconds after the detector warning to stop.
At that time, the train experienced a U.D.E. app
Ron, you posted the link to the downloaded copy of the NTSB pictures you saved on your computer.
You need to provide the link to the original in the dossier.
From what I gather from the news and through contacting the FRA is that on June 25, the NTSB will speak about the cause of the East Palestine derailment among other details. Without getting into fine points of definition, I assume that this will be a probable cause. I understand, at this point, NTSB has not announced any cause.
Information from the FRA indicates that the FRA has either completed their investigation of the East Palestine derailment, or they have not. In either case, the FRA intends to not release their final report until a time after the NTSB releases their final report on June 25.
New reporting indicates that the NTSB will make known their conclusion as to the cause of the derailment at their final meeting on June 25, under two reported scenarios:
- NTSB will announce the cause that they have determined at the June 25, meeting.