ISO folders look complete from the office. On the floor, operators have already learned a shorter path: a fixture moved, a bath time changed by a veteran, a label printer that only works if you slap it. The laminated SOP still shows the old square. Dust is information.
SOP Recovery Lab does not write prettier binders. We throw out pages that describe a grid that no longer exists. What remains must match a square someone can walk to. Each surviving page gets a steward who updates it when engineering actually changes the work, not when an audit is rumoured.
Plants around Taichung Hsieh often keep English buyer specs in one drawer and Chinese bench notes in another. The recovery is to make those two talk. A procedure that only exists in the language of the audit is a procedure for the auditor.
If a page has not been touched in a year, assume the process moved. Confirm on the floor. Do not reprint the plastic as a gesture of care.