Corrections policy
What evidence is needed to correct a specification, compatibility relationship or planning calculation.
Make the source match the claim
A useful correction identifies the page, the exact field, the complete machine or accessory number and a current manufacturer document. A different size, suffix or generation may not settle the question. Material changes should retain a traceable source and an updated review record.
Uncertainty is a valid result
When reliable documents disagree, the record should explain the gap rather than choose the more convenient answer. A missing relationship stays unverified until supported; a numerical blank does not mean zero. Contact and source-check information is on the Contact page.
Calculator corrections
Identify the input values, expected arithmetic and result shown. Distinguish a software error from an assumption outside the tool’s stated model. Confirmed implementation errors should receive a regression test. Do not send sensitive personal data, payment details or private documents for a calculation that can be explained with example inputs.