Perspectives: Plant InSites

Maintenance: Shift Your Approach to Abandoned Equipment

Leaving such items in place invariably is the worst option.

By Andrew Sloley, Contributing Editor
Dec 2, 2016

Nearly every plant has them — equipment items abandoned in place. In better-documented facilities, such sidelined equipment still may appear on piping and instrumentation diagrams (P&IDs) with a notation like “OOS” (out of service) or “AIP” (abandoned in place). Equipment is left in place for two main reasons: money and uncertainty.

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