Ocean guardian bearing failure

[MAK]

@Hawespiper

It sounds like there’s some guys in this thread with Cat experience so I’m curious about something.

Is it not standard practice after an overhaul to run the engine unloaded for short periods (say, 1, then 3, then 5 mins), stopping the engine between those runs, opening all the inspection doors, and using a laser temp gun on all the bearings? That’s what I’ve observed overhaul teams do on OSG ships and it seems like it would have caught the problem in this incident before it became an incident.

Not necessarily. NC does a lot of in frames and that adds a lot of time. Cutting open an oil filter and checking for unusual amount of bearing material is more common in my experience.