Using old marked-up print with no verification
Treat old marked-up prints as clues, not authority. Verify against the latest approved drawing before installing.
Stop if
- Is this markup still current, or has it been superseded by a newer drawing/RFI?
Watch out
- Do not install from old redlines without verifying they still apply.
Check
- Check revision/date.
- Find who marked it and why.
- Compare with current set/shop drawing.
- Look for superseded notes.
- Ask before trusting old field markup.
Steps
- Check revision/date.
- Find who marked it and why.
- Compare with current set/shop drawing.
- Look for superseded notes.
- Ask before trusting old field markup.
Say this to your foreman
Is this markup still current, or has it been superseded by a newer drawing/RFI?
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