AAA - Equipment that is no more than 2 years old and has no more then 2000 hours that is in complete working condition and requires no repairs except for normal routine maintenance.

AA - Equipment that is no more than 4 years old and has no more than 4000 hours that is in complete working condition and requires no repairs except for normal routine maintenance.

A - Equipment of any age/hours that is operational but has minor wear and/or requires minor repairs.

B - Equipment of any age/hours that is operational but has moderate wear and/or requires moderate repairs.

C – Equipment of any age/hours that is operational but has major wear and/or requires major repairs.

D – Equipment of any age/hours that does not operate as expected and requires extensive repairs or is missing major components.

When the condition varies between individual components or systems without yielding any uniform ratings please refer to the inspection report.