Aircraft

The Case of the Dark Vacuum Furnace

THE MYSTERY The temperature controller of a 20-year-old vacuum furnace had gone completely dark. This furnace was a critical piece of equipment for the owner, a local aircraft plant. The original manufacturer of the controller no longer supported it — but they would…

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The Case of the Frozen Drive

THE MYSTERY A Yaskawa 515 variable frequency drive at a local aerospace company wasn’t starting. The VFD had been working correctly until suddenly stalling in its tracks. THE CLUES Upon arriving on the scene the CSI immediately recognized that the VFD run light was…

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