Article: Firm disregards standards for L motor repairs, loses out on pact

The CTA has canceled plans for a $596,000 repair contract and stopped shipping L car motors needing repairs to a supplier after a surprise inspection showed that the company has been ignoring strict agency standards for the work.

The Dec. 14 inspection by the CTA's quality control team revealed that Calumet Armature Electric has failed since September to perform so-called "vacuum pressure impregnation" on electric L car motors.

An anonymous phone call to the CTA prompted the inspection.

Vacuum pressure impregnation is a pivotal step in the process of repairing L car motors aimed at preventing electrical short circuits that can lead to fires, officials said. Rapid transit car fires ...

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