Defective wheel parts made in China for the new Series 5000 rail cars could have led to derailments, according to a Chicago Tribune report.
To their credit, it was CTA inspectors who first noticed the defective wheel housing parts. But it was after an 18-month testing period, and after the new rail cars were put into revenue service in November on the Pink Line.
What took so long? Thankfully, there were no derailments or accidents.
The CTA yanked them out of service in mid-December. Bombardier, the Canadian-based manufacturer, is now replacing the wheel housing on all 54 cars that were delivered last year with parts made in both Germany and China.
Tribune reporter Jon Hilkevitch deserves credit for tirelessly reporting this story.