UPS never required detailed inspection of part that failed before engine flew off plane that crashed

UPS never required the detailed inspections needed to spot the problem that allowed an engine to fly off one of its planes ...
The New York Times

The Best Uninterruptible Power Supply (UPS)

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Sarah Witman Sarah Witman is a writer focused on batteries and charging ...