Transit reliability is front and centre at the TTC board meeting on Thursday, with city officials getting an update on the two fluid leaks that caused commuter chaos over a period of three days earlier this month.Board members heard that on April 7, 200 litres of fluid leaked onto the tracks, while the April 10 leak saw less than 10 litres spilled.A third party called in to examine the leaks on behalf of the TTC says the two incidents do not appear to be atypical, were random in nature, could not have been predicted and are not uncommon for a similar-sized transit authority.The first issue was due to a high-pressure hydrostatic fitting incorrectly assembled, with three of the four mounting bolts not being torqued correctly, which resulted in O-ring wear, which caused a “catastrophic failure.”The second issue was due to an original parts failure which was supplied to the TTC. A flow control valve was found with an exposed O-ring at the leak location, a result of under-torque during assembly.Related:TTC CEO orders suspension of work car fleet after latest hydraulic fluid spill on Line 2TTC CEO Mandeep Lali said they are working with the manufacturer and the third party while also looking at their processes and what can be done better going forward.“It’s not lost on me that this is the second time this incident has come to the board,” said Lali. “The actions that are being taken now …are unprecedented with respect to understanding better, on the news cars and some of the old cars, how we maintain them based on the challenges and pressures they face.”Coun. Josh Matlow says he will be calling for a clear action plan from the TTC, noting that without a plan or proper funding, these types of disruptions risk becoming the norm for commuters.“This has been going on since 2024. There have been over 21 leaks that have disrupted people’s lives, and I don’t want to see that happen again. It’s not good enough for the TTC to say they will do something about it. There are recommendations there, and they should be fully implemented, and I’m going to ask why they haven’t been,” Matlow said ahead of the meeting.Matlow adds that the problems experienced point to a larger issue of aging infrastructure and years of underinvestment and that the current plan in place isn’t sufficient.CityNews’ Catalina Gillies contributed to this report