How an auto component supplier handles drawing revisions

This story shows a practical response to old drawings are collected from the floor when a new revision arrives.

The business

This composite concerns a machined auto components business with about 100 people. Orders, staff updates and physical records come from more than one desk. Each hand-off can add delay if the next person cannot verify the current position. The development engineer manages the daily development work. The quality manager is called when a commitment changes or a decision exceeds normal authority.

Records may be spread across latest approved drawing, trial notes, inspection record and customer approval. This story centres on this recurring task: old drawings are collected from the floor when a new revision arrives.

What was going wrong

In this machined auto components business with about 100 people, the issue is old drawings are collected from the floor when a new revision arrives. The trouble appears first at the hand-off, before the monthly report can reveal it. The team can usually explain the situation after several calls. That explanation is rarely attached to the document that the next shift or the customer sees. In this case, the important missing link is track superseded drawing copies at each machine. It is not enough to know that someone spoke about it.

The second problem is timing. When a sample is accepted but the floor makes the bulk quantity to an older specification, the check happens too late to change the next commitment.

What they changed

The team would start by giving one person responsibility for the sample and drawing approval file. Its first rule is simple: Only the signed current revision is released to regular production. Staff can still make calls and use WhatsApp, but the approved reference and the reply return to that record. One owner keeps the entry current, and another person handles decisions outside the routine limit.

For this particular problem, the operating instructions are concrete:

1. First check: Track superseded drawing copies at each machine. Keep a reference to the source rather than a summary from memory.
2. Next action: Collect old sheets. Add the responsible role and the time the next answer is needed.
3. Decision point: Mark first job made to the new revision. Do not quietly replace an old promise or technical record.

The team can copy this small register. Both entries below are illustrative examples, not records of a real business.

At the end of the review, anything still uncertain stays open. The next person should be able to find the original source, understand which part is confirmed and see who is expected to act. If an approval involves price, safety or compliance, the authorised manager makes that decision.

What a normal morning looks like now

The development engineer opens the sample and drawing approval file alongside latest approved drawing, trial notes, inspection record and customer approval. They look first for work promised today and then for items missing an owner or proof. The quality manager does not need the complete history retold. Only the exceptions, their business effect and the requested decisions reach that desk.

A useful meeting ends with the reference, next action and date written down. The team checks the same list later rather than asking each department for a fresh verbal status. Trial conditions must be reproducible in normal shifts. A one-off sample made by a specialist is insufficient.

What did not work at first

A likely first attempt is adding more columns or asking everybody to update another report. People then spend time copying entries from their own registers. A second attempt is to mark cases closed after a reassuring phone call. Neither establishes whether the underlying goods, amount or instruction has been checked.

The simpler practice keeps the original reference and records only what has changed. A disputed entry remains disputed. If the team cannot find evidence, it names the person who can, and sets a time for the next check.

What is still not solved

A register cannot remove a material shortage, a customer's disagreement or a long outside lead time. It can expose the risk early enough for a person to decide. This story does not claim an achieved saving, improved margin or shorter delivery time. The useful outcome to measure would be fewer unowned exceptions and a clear record of decisions.

If you want to try this

1. Open Handling engineering changes and choose one live case matching this story. Identify the exact trigger and finish condition.
2. Copy the fields from Document control sop. Enter the source, one responsible person, the next check and its date. Use actual records, not the example figures here.
3. At the next review, compare the register with the physical or financial evidence. If the same gap returns, revisit Old drawings on floor and change the control at that point.

Read next

• Old drawings on floor
• Handling engineering changes
• Document control sop