Why: Facilitates speedy repairs by providing maintenance technology above the craftsman level and up to but not including reliability engineering principles.
When: Provides expertise for more complicated maintenance tasks or when organization and oversight is required and time is of the essence for fast repairs.
Where: Provides on-site expertise to aid craftsmen to solve non-standard repairs without hands-on tool contact. Maintenance engineers serve as liaison with reliability engineers.
These definitions are written by H. Paul Barringer and are also posted on his web site at www.barringer1.com