Reference A / establish the baseline
Identify the physical sample and supplier drawing used for the first discussion. Record unresolved interface and material questions without calling the sample approved.
Field manual / 06
Never lose
the version.
Keep the frame revision and part revision on the same line. These fictional labels illustrate record keeping; they are not actual engineering releases.
One change.
Two records.
Reference B / document the difference
Ask what changed and why. Preserve the previous identification, the new drawing and the supplier’s statement about any cross-revision use.
Review decision / keep the scope
If a real approval is later given, record the exact pair and conditions. A decision on one colour or component does not imply approval of every variation.
| Frame record | Part record | Evidence still needed | State |
|---|---|---|---|
| Vector / A | Nose / A | Interface drawing and attachment method | Reference pair only |
| Traverse / B | Tips / A | Cross-revision review and left/right identification | Revision conflict |
| Relay / B | Hinge / B | Existence of a separately serviceable cover | No reference mapping |