--- title: "PL Internal Corrosion - Condition History" slug: "pl-internal-corrosion-condition-history" updated: 2026-03-09T10:16:11Z published: 2026-03-09T11:27:02Z canonical: "ims-handbook.cenosco.com/pl-internal-corrosion-condition-history" --- > ## Documentation Index > Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt > Use this file to discover all available pages before exploring further. # PL Internal Corrosion - Condition History This section provides, by default, an overview of ECHs with an Action Performed related to Internal Corrosion. To learn more about the columns in this section see [IMS Condition Histories](https://ims-handbook.cenosco.com/v410/docs/ims-condition-histories-echs-across-discipline).