The purchasing decision
Track items used per build, time waiting for parts and stock left unused. Set small initial reorder quantities and review them against observed consumption. Separate approved spares from speculative upgrade inventory.
Keep these records
- Usage per repair.
- Lead-time delays.
- Reorder quantity and review date.
Give each record an owner and a revision or date. If a supplier proposes a different part or test condition, record it as an exception for review before treating the quotation as equivalent.
Turn the review into a sourcing request
Start with the linked component checklist, add the actual platform and part identity, and state quantity, destination and timing. List unresolved requirements explicitly so the first discussion can focus on those gaps.
Repair-shop BOM kits — requirement checklist