A dimensional report can contain accurate numbers and still be difficult to approve. If the buyer cannot connect a row to a requirement on the released drawing, the report becomes a transcription exercise rather than usable evidence.
A ballooned manufacturing drawing provides that connection. Each identified characteristic points to a controlled report entry. For OEM sheet-metal assemblies, the system should cover the requirements that determine acceptance, including relevant drawing notes and assembly checks—not just dimensions that are convenient to measure.
Establish the document baseline first
Record the part number, drawing revision, model revision where applicable, governing specifications and report identifier. Confirm that the PDF, model and purchase order describe the same configuration. Do not begin ballooning an uncontrolled print and assume someone will reconcile it later.
A balloon number is a navigation reference; it does not change the engineering requirement. If the source dimension is ambiguous or conflicts with another document, resolve the engineering question separately. The inspection team should not silently create a new nominal value while preparing the report.
Identify characteristics without losing their relationships
A hole pattern can include diameter, position and other associated requirements. Assign references that let the reader see which feature and requirement each result represents. Avoid a single “holes OK” row when several characteristics require different evidence.
Not every drawing annotation needs the same response. A reference dimension, a finish requirement, a hardware identity and a measured tolerance have different purposes. State how each relevant requirement will be verified and whether it belongs in the dimensional report, a supporting record or an assembly check.
| Drawing requirement | Report connection | What to avoid |
|---|---|---|
| Controlled dimension or geometric tolerance | Characteristic ID, requirement and measured result | A result with no units or datum context |
| Finish or material note | Relevant certificate, process or inspection reference | Inventing a numeric measurement for documentary evidence |
| Installed hardware identity | BOM item and agreed presence/identity check | Confusing a BOM item number with a balloon ID |
| Functional mating check | Reference assembly, setup and recorded outcome | An unexplained “fits” entry |
Decide how repeated features will be recorded
Suppose an illustrative cover has several identical mounting holes. A single dimensional callout may govern all of them, but the report still needs to identify the checked locations and the agreed sampling or full-inspection scope.
One approach is a parent characteristic with location-specific sub-identifiers. Another is a separate row per controlled feature. Choose a method that remains understandable when one location fails. Avoid reporting an average diameter if the acceptance rule applies to each individual hole.
Similarly, do not place a measured bend angle in the row intended for flange height. The numbers can look plausible while answering different questions. A report review should check the mapping as well as the values.
Preserve the method and delivered condition
Include units, applicable limits, instrument or fixture reference and the inspection condition required by the quality plan. Note whether the component was unfinished, coated or fully assembled. Where restraint changes the result, identify the support and fastening arrangement.
For a geometric tolerance, preserve the datum references and required evaluation method. A coordinate export alone does not tell the customer whether the measurement used the intended alignment.
Control balloon changes with drawing changes
When the drawing changes, review the affected characteristics, report template and supporting inspection programs together. Preserve a clear mapping from the earlier IDs to the new version where practical; if renumbering is necessary, issue the revised mapping.
A copied report with a new revision in its header is not evidence that the revised part was inspected. Keep previous results identifiable and record the actual scope of the new inspection.
The IAQG 9102 resource page explains its standardized first-article documentation purpose. Where a customer requires that system, use the applicable standard and agreed forms. A ballooned drawing on its own does not make a report AS9102-compliant, and a medical customer may specify a different format.
Review a sample report before production
Supply a preferred template or ask for a proposed one during quotation. Test whether an engineer unfamiliar with the job can navigate from a report row to the drawing, the inspected location and any supporting evidence.
Agree how missing results, nonconformances and approved exceptions will be shown. A blank cell should not be interpreted as a pass. This early review makes the final submission easier to assess and reduces administrative rework without weakening the inspection requirement.
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