The 82-501222A6T is a wear indicator tool (WIP tool) used for inspecting internal vane wear in aircraft dry air vacuum pumps without disassembly. It is part of the Tempest maintenance system used on Tornado-series vacuum pumps.

This tool is inserted into the pump inspection port to measure wear conditions of internal components, helping determine whether the vacuum pump is still within service limits or approaching end-of-life.

Key features include:

Precision wear inspection tool for vacuum pumps
Used for non-invasive internal vane wear measurement
Compatible with Tempest dry air pump families (200/240/400 series systems)
Supports preventive maintenance and failure prediction
Enables inspection without full pump teardown
FAA maintenance-use tool for A&P/IA level servicing
Lightweight compact inspection instrument