A single AOG event can cost an operator well over $100,000 for every hour an aircraft sits grounded, and the part responsible is rarely one nobody makes anymore. Most of the time it is a rotable, a consumable, or a repairable that the MRO already owns, just sitting in the wrong hangar, under the wrong bin code, or missing from a stock count that hasn't caught up with reality. Static min/max levels and spreadsheet-driven reorder points were built for a slower, single-base operation, not a multi-fleet network running heavy checks, line maintenance, and rotable exchange out of several warehouses at once. Fixing this means connecting stock levels, asset demand history, reorder alerts, warehouse visibility, and maintenance planning into one continuously updated system rather than four disconnected spreadsheets that get reconciled once a week. To see what that looks like against your own fleet and parts catalog, book a demo.
AVIATION MRO · CRITICAL SPARES · AOG PREVENTION
Stop Losing Six Figures an Hour to a Part You Already Own
iFactory connects stock levels, asset-level demand history, reorder alerts, warehouse visibility, and maintenance planning into one system, so critical aviation spares are where they need to be before an aircraft is ever grounded waiting for them.
$150K+
Typical cost per hour of a grounded wide-body aircraft, once lost revenue and re-accommodation are counted
32%
Of operations leaders report frequent stockouts of the specific parts classified as critical to their fleet
18 hrs
Average time crews spend manually searching hangars and spreadsheets for a compliant replacement part
3+
Separate systems most MROs still reconcile by hand before a reorder decision gets made
THE PROBLEM
Most Stockouts Are Not a Supply Problem, They Are a Visibility Problem
When a maintenance planner asks "do we have this part," the honest answer in most shops is "probably, somewhere." The part may be sitting in a satellite base three time zones away, checked out against a work order that never closed, or logged under a superseded part number that the system no longer matches to the one on the shelf. None of that shows up as a supply chain failure on paper. It shows up as an AOG delay that gets blamed on the vendor, when the part was actually in the building the whole time.
Static Min/Max Levels
Reorder points set once a year and never adjusted for a specific tail number's utilization, route intensity, or aging component curve.
Disconnected Warehouses
Each base tracks its own bin locations, so a part sitting idle at one station never gets offered to a station that actually needs it.
Maintenance Plans in a Different System
Heavy check schedules live in one tool, parts inventory in another, so predictable demand from an upcoming C-check never reaches procurement early.
Manual Traceability Checks
A part is found, but the 8130-3 airworthiness tag or time-since-overhaul record takes hours to locate, delaying installation even after the search ends.
CLASSIFICATION FIRST
Not Every Part Deserves the Same Inventory Investment
Treating every line item in the parts catalog with equal urgency is how shelves end up full of slow-moving stock while the parts that actually ground aircraft stay chronically short. A defensible spares strategy starts by classifying parts on two independent axes: what kind of part it is, and how operationally critical it is if the aircraft cannot dispatch without it.
Rotable
High-value, repairable components tracked by serial number across their full life cycle, exchanged and overhauled rather than discarded.
Repairable
Mid-value components sent to a repair vendor after failure, with turnaround time itself becoming a planning variable.
Consumable
Lower-value parts used once and replenished on standard reorder logic, but still capable of grounding an aircraft if unavailable.
Expendable
Bulk items such as fasteners, seals, and consumable fluids, low individual risk but high volume and easy to undercount.
No-Go Critical
Dispatch is not legally or safely possible without this part; stockout risk here is treated as an operational emergency, not a backorder.
Go-If Deferrable
Dispatch is possible under a Minimum Equipment List provision, but the deferral clock is running and the part still needs a resolution date.
Go, Low Priority
Standard reorder logic applies, with capital efficiency as the primary goal rather than dispatch risk.
THE COMPARISON
Static Reorder Points Versus a Connected Spares System
| Capability |
Static Min/Max |
Connected AI System |
| Reorder trigger |
Fixed quantity set annually, same across every tail number |
Per-part-number demand modeled against fleet age, route, and utilization |
| Heavy check demand |
Discovered when the work order is opened |
Pre-positioned weeks ahead using the maintenance schedule feed |
| Cross-base visibility |
Each warehouse tracked independently |
Real-time visibility across every base, with transfer suggestions before reorder |
| Traceability lookup |
Paper or spreadsheet records located manually |
8130-3 tags and TSO history attached to the part record and searchable instantly |
| Emergency procurement |
Discovered only after a stockout occurs |
Flagged days or weeks before the shelf actually runs empty |
See your own critical parts list scored by dispatch risk
iFactory maps your catalog against No-Go, Go-If, and Go tiers, then shows exactly where reorder points are set wrong today.
HOW IT WORKS
From Consumption Event to Restocked Shelf, One Continuous Flow
1
Demand Signal Captured
Every part consumption, removal, and installation event updates the demand model for that specific part number and tail.
2
Maintenance Schedule Cross-Referenced
Upcoming C-checks, D-checks, and line maintenance visits are matched against historical parts consumption for that check type.
3
Reorder Point Recalculated
Stock thresholds adjust per part number rather than staying fixed, reflecting real utilization instead of a once-a-year estimate.
4
Cross-Base Transfer Checked First
Before a new purchase order is raised, the system checks whether the part is already sitting idle at another base in the network.
5
Alert and Traceability Record Issued
A reorder alert reaches procurement with the part's full airworthiness documentation already attached, ready for receiving inspection.
MULTI-BASE VISIBILITY
A Part Sitting Idle at One Station Is Still a Stockout at Another
Networked MROs and multi-base airlines lose far more inventory efficiency to warehouse fragmentation than to genuine supply scarcity. A rotable pulled during an overhaul at one station and never logged as available often sits untouched for months while a sister station places an emergency order for the same part number.
Unified Bin-Level Location
Every part's physical location tracked at bin level, across every base, in one searchable record.
Reserved Versus Available Stock
Parts already allocated to an open work order are separated from truly available stock, so counts stay accurate.
Transfer Lead Time Modeling
Each inter-base transfer route carries its own realistic lead time, so a transfer decision reflects actual delivery speed.
Pooling and Loaner Tracking
Parts borrowed through pooling agreements or loaned to partner MROs stay visible in the same system as owned stock.
A COMPOSITE SCENARIO
The AOG That Never Happened
A regional carrier's line station flags a hydraulic pump nearing its expected failure window, based on the consumption pattern of similar pumps on aircraft with comparable route intensity. Three weeks before that tail's next scheduled check, the system cross-references the fleet-wide parts network and finds an identical rotable sitting idle at a base two stops away, already tagged and airworthy. A transfer is scheduled to arrive two days ahead of the check window instead of a new unit being ordered from a distributor at a premium. When the pump does eventually fail on schedule, the replacement is already on the shelf, the work order closes in under an hour, and the aircraft never sits grounded waiting on a part the network already owned.
GETTING STARTED
A Practical Rollout Sequence
1
Classify the Catalog
Tag every part number by type and criticality tier so investment follows dispatch risk, not habit.
2
Connect the Warehouses
Bring every base's stock record into one visibility layer before touching reorder logic itself.
3
Sync the Maintenance Schedule
Feed upcoming heavy checks into the demand model so predictable consumption stops arriving as a surprise.
4
Turn On Reorder Alerts
Move from fixed min/max thresholds to per-part alerts once the underlying data is trustworthy.
COMMON MISTAKES
Where Spares Programs Usually Go Wrong
Treating Every Part as Equally Urgent
Without a No-Go versus Go-If tier system, capital gets spread evenly instead of toward the parts that actually ground aircraft.
Skipping the Warehouse Connection Step
Turning on smarter reorder alerts before bases can see each other's stock just adds duplicate purchase orders on top of the visibility gap.
Leaving Traceability as a Separate System
A part found in time still delays installation if its airworthiness tag has to be tracked down separately.
Ignoring Maintenance Schedule Data
Heavy check demand is predictable months out, yet many shops still let it surface as an emergency reorder the week the aircraft enters the hangar.
FREQUENTLY ASKED QUESTIONS
What MRO Teams Ask About Critical Spares Management
How is a critical spares system different from a general parts inventory tool?
A general inventory tool tracks quantity on hand, while a critical spares system layers dispatch-risk classification, maintenance schedule demand, and cross-base transfer logic on top of that count. The goal is not just knowing what exists but knowing which shortages could actually ground an aircraft versus which ones are a minor inconvenience. That distinction is what lets a planning team focus attention where it prevents real AOG exposure.
Book a demo to see how classification changes reorder priority for your fleet.
Do we need to replace our existing parts catalog and records?
No, existing part numbers, bin locations, and airworthiness records are brought into the connected system rather than replaced from scratch. The work is mostly in classification, warehouse linking, and reorder logic, not rebuilding a catalog that already reflects years of operational history. Most shops keep their existing part numbering conventions throughout the rollout.
Contact support to talk through how your current catalog structure would map over.
How does this handle Minimum Equipment List deferred items?
Parts tied to an open MEL deferral are tracked against their resolution deadline, not just treated as a routine backorder. The system flags approaching deadlines early enough that procurement has real lead time, rather than the deferral clock running out with no replacement in sight. This keeps a Go-If item from silently becoming a No-Go situation.
Book a demo to see the deferral tracking view.
Can this work across multiple MRO bases with different ERP systems?
Yes, the visibility layer is designed to sit across bases even when each one runs its own legacy system underneath, pulling stock records into one searchable network rather than requiring every base to migrate first. Transfer suggestions and reorder alerts then work against the combined picture instead of each base's isolated numbers. Integration scope depends on what systems are currently in place at each station.
Contact support for a technical walkthrough of your specific environment.
How long before we see a measurable reduction in stockouts?
Warehouse connection and classification typically show visible results within the first few weeks, since simply seeing accurate cross-base stock eliminates a large share of duplicate emergency orders immediately. The reorder alert and maintenance-schedule sync layers build on that foundation and continue improving accuracy as more consumption history accumulates. Most teams see a full picture of impact within one full maintenance check cycle.
Book a demo to get a realistic timeline for your fleet size.
STOP THE NEXT STOCKOUT BEFORE IT GROUNDS AN AIRCRAFT
Give Every Base Visibility Into the Parts the Whole Network Already Owns
iFactory connects stock levels, asset demand, reorder alerts, warehouse visibility, and maintenance planning into one system built for aviation MRO's traceability and dispatch-risk requirements.
