How do I set up a serialized inventory system for AOG part searches and warehouse tracing?

To set up a serialized inventory system for AOG (Aircraft on Ground) part searches and warehouse tracing, design it so every individual part can be tracked by a unique serial number from receipt to installation.

1) Define the core data model

At minimum, track these entities:

• Part master

  • Part number
  • Description
  • Manufacturer / MPN
  • ATA chapter / category
  • Serialized flag
  • Shelf-life / inspection requirements

• Serial-controlled inventory record

  • Serial number
  • Part number
  • Condition/status (serviceable, unserviceable, quarantined, scrapped)
  • Current location
  • Ownership
  • Trace document references
  • Life-limited / cycles / hours if applicable

• Location master

  • Warehouse
  • Zone / aisle / bin / shelf
  • Airport / station / vehicle / repair shop
  • “Installed on aircraft” as a location if needed

• Transaction history

  • Receipt
  • Put-away
  • Move
  • Pick
  • Issue
  • Return
  • Install
  • Remove
  • Inspection
  • Repair
  • Scrap

2) Use a unique identity for each serialized part

Each physical item should have:

• Part number
• Serial number
• Optionally a lot/batch number
• A unique internal inventory ID if your ERP needs one

A good rule:

• Part number identifies what it is
• Serial number identifies which exact unit it is

3) Build warehouse tracing around location history

For traceability, do not overwrite location data without history. Instead, store a transaction log:

• Timestamp
• User
• From location
• To location
• Action type
• Serial number
• Part number
• Reason / reference number
• Document trail

This lets you answer:

• Where was the part last seen?
• Who moved it?
• When did it leave quarantine?
• Was it ever installed?
• What box/bin/zone is it in now?

4) Support AOG search logic

For AOG part searches, users usually need fast answers to:

• Is the part available?
• Where is it now?
• Is it serviceable?
• Is it serialized and traceable?
• Can it be picked immediately?
• Which serials match the required part number and condition?

So create search filters for:

• Part number
• Serial number
• Status/condition
• Location
• Warehouse/station
• Certification/trace completeness
• Quantity available for non-serialized stock

For serialized parts, availability is usually 1 unit = 1 serial.

5) Implement status controls

Use clear inventory statuses, for example:

• Received
• Quarantine
• Inspected
• Serviceable
• Unserviceable
• Reserved
• Picked
• Issued
• Installed
• Returned
• Scrapped

This prevents AOG teams from accidentally using unapproved parts.

6) Add document and compliance traceability

Aviation inventory usually needs documents linked to each serial:

• Airworthiness certificate
• Release certificate
• Inspection report
• Repair order
• Shipping documents
• FAA/EASA/other regulatory references
• Alternate part approval, if any

Store these as attachments or linked records.

7) Use scanning to reduce errors

For warehouse operations, support:

• Barcode labels
• QR codes
• RFID, if needed

Label each serialized item with:

• Part number
• Serial number
• Internal item ID
• Barcode/QR

This makes receiving, locating, and tracing much faster.

8) Design key workflows

Receiving

• Scan part number and serial
• Validate against PO / ASN
• Capture condition and docs
• Assign initial location
• Set status to quarantine or serviceable

Put-away

• Scan item
• Scan bin/location
• Record move transaction

Search for AOG

• Enter part number and requirements
• Show exact serials available
• Show current location and status
• Show trace docs and readiness

Picking / issuing

• Reserve serial
• Scan out of location
• Record handoff to maintenance or shipping

Return / repair

• Capture removed serial
• Update status
• Move to quarantine or repair queue

9) Build exception handling

Aviation systems must handle:

• Missing serials
• Duplicate serial numbers
• Unknown location
• Damaged labels
• Partial trace
• Mismatched paperwork
• Parts found in the wrong bin

Create exception workflows so these items don’t disappear from the system.

10) Reporting and audit

Useful reports include:

• Stock by part number and status
• Serialized parts by exact location
• AOG-ready inventory
• Parts with incomplete trace
• Move history by serial number
• Ageing in quarantine
• Scrap and repair history

Audit logs should record all changes with user/time stamps.

11) Suggested table structure

A simple schema might include:

• parts
• serial_items
• locations
• inventory_transactions
• documents
• serial_documents
• reservations
• work_orders
• users

12) Practical implementation tips

• Make serials mandatory for serialized items
• Never allow stock movement without a transaction record
• Use handheld scanners in the warehouse
• Enforce status rules with validation
• Keep trace documents linked to serial records
• Index searches by part number, serial, location, and status for speed

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If you want, I can also give you:

1. a database schema example,
2. a workflow diagram, or
3. a sample AOG search screen design.