Aerospace Component Crating Requirements: A Guide for MRO and Aftermarket Shippers
2026-03-16 21:05
Reading Time: 8 minutes
Aerospace components move through the supply chain constantly — from overhaul facilities to operators, from aftermarket distributors to line maintenance crews, from Canadian suppliers to international MRO shops. The parts are often high-value, serialized, and subject to strict handling requirements. The packaging they travel in needs to match.
Unlike general industrial freight, aerospace components carry traceability requirements, surface protection standards, and documentation expectations that standard packaging simply cannot meet. A part that arrives with a contact mark, corrosion, or handling damage is not just a logistics problem — it is a potential airworthiness issue that triggers non-conformance reports, quarantine, and costly re-inspection.
This guide covers the crating and packaging requirements that MRO facilities, aftermarket distributors, and aerospace parts suppliers need to understand before their next shipment moves.
Why Standard Packaging Fails Aerospace Components
The default instinct for many first-time aerospace shippers is to wrap the part in bubble wrap, drop it in a generic wooden crate, and call it done. For low-value, non-critical hardware this may be acceptable. For serialized aerospace components it is not — and here is why.
Contact damage is a non-conformance event. Any mark, scratch, or surface anomaly on a critical aerospace component — a machined flange face, a bearing race, a coated surface — must be documented and evaluated before the part can be installed. What looks like minor packaging damage on the outside may ground a part until an engineering disposition is completed.
Corrosion is invisible until it is too late. Bare metal aerospace components — titanium, aluminum alloy, steel — are susceptible to atmospheric corrosion, especially during long-distance shipping or ocean transit. A part that leaves a Canadian facility clean can arrive at an overseas MRO shop with oxidation that requires stripping and re-treatment before it is serviceable.
Generic foam is not an engineered solution. Off-the-shelf foam padding is not rated for specific component geometries, load paths, or vibration frequencies. It provides general cushioning but does not prevent movement, control contact points, or protect specific surfaces. For aerospace components with tight tolerances, the difference between engineered blocking and generic foam can be the difference between a serviceable and a quarantined part.
Core Crating Requirements for Aerospace Components
1. Engineered Interior Support and Blocking
The crate interior must be designed around the specific geometry of the component being shipped. This means:
Identified support points: The blocking must contact the component only at designated structural points — not at machined surfaces, coated areas, or calibrated features. For complex assemblies, this requires reviewing the component drawing or consulting with the shipper's engineering team.
Zero movement tolerance: The component must be immobilized inside the crate with no measurable play in any direction. Any movement during transit creates wear, fretting, or impact damage at contact points.
Load path engineering: For heavy components, the blocking must be capable of supporting the component's weight through the handling forces of a full transit cycle — not just static weight but the dynamic loads of lifting, transport vibration, and carrier handling.
2. Surface Protection
Bare metal aerospace components require direct surface protection before they contact any packaging material. The standard approach uses a combination of:
VCI (Vapor Corrosion Inhibitor) film or paper: VCI material releases a corrosion-inhibiting vapor that forms a molecular barrier on metal surfaces, preventing oxidation without leaving residue. It is the standard for bare metal aerospace components in transit and storage.
Foam interface material: Where blocking contacts the component, closed-cell foam or equivalent material provides a non-abrasive interface that prevents fretting and surface marking. The foam must be clean, non-outgassing, and compatible with the component's surface treatment.
Desiccants: Silica gel or molecular sieve desiccants placed inside the crate absorb ambient humidity and prevent condensation during temperature swings — particularly important for ocean freight and cold-weather transit.
Sealed inner packaging: For components with very tight corrosion requirements, a heat-sealed VCI bag around the component before it enters the crate provides an additional moisture barrier.
3. ISPM-15 Certified Wood
Any crate or skid using solid wood that will cross an international border must be built with ISPM-15 certified, heat-treated lumber. This applies to all MRO and aftermarket shipments leaving Canada for international destinations — the US, EU, UK, Middle East, Asia, and beyond.
Non-compliant wood packaging is one of the most common and avoidable causes of shipment holds at destination ports. For an aerospace component already in the MRO queue, a customs hold waiting on packaging compliance can cascade into schedule disruptions that cost far more than the crating.
4. ESD Protection for Avionics and Electronic Components
Avionics units, electronic control assemblies, sensors, and wiring harnesses require electrostatic discharge protection in addition to physical packaging. ESD-sensitive aerospace components must be:
Packaged in certified anti-static bags before placement in the crate
Isolated from conductive materials that could create a discharge path
Clearly marked with ESD warning labels visible on the outer packaging
Handled by personnel aware of ESD protocols at every point in the chain
Failure to use ESD protection for sensitive avionics is not just a packaging gap — it can result in latent damage that is not detectable until the unit fails in service.
5. Orientation and Handling Markings
Crates for aerospace components should carry clear external markings indicating:
This Side Up — with arrows on all four vertical faces
Fragile or Handle with Care where applicable
Do Not Stack if the component or crate cannot accept stacking loads
Centre of Gravity marking for heavy or asymmetric assemblies
Sling Here or lift point indicators if crane handling is required
These markings are not decorative — they are instructions for every handler who touches the crate between your facility and the destination.
Documentation Requirements for Aerospace Shipments
Packaging is only part of the picture. Aerospace components in MRO and aftermarket distribution carry documentation requirements that must travel with the part.
Airworthiness Documentation
Every serviceable aerospace component must ship with its release documentation — the paperwork that establishes the part's airworthiness status. Depending on the origin and destination, this may include:
Transport Canada Form 24-0078 or equivalent release certificate for Canadian-originated parts
FAA Form 8130-3 for parts entering the US market or dual-released under bilateral agreements
EASA Form 1 for parts entering the European market
Certificate of Conformance (C of C) from the manufacturer or overhaul facility
A part without its release documentation is not installable — it is quarantined until the paperwork is located or the part is re-certified. Always confirm which release document the receiving facility requires before the shipment moves.
Shipping Documentation
In addition to airworthiness paperwork, the shipment requires standard export documentation:
Commercial Invoice with accurate part number, description, quantity, and declared value
Packing List itemizing each component with its serial number, part number, and weight
Bill of Lading or Airway Bill
HS Code classification — aerospace components fall under Chapter 88 of the Harmonized System; correct classification affects duty rates and export control screening
ISPM-15 compliance documentation for international shipments with wood packaging
Export permits if the component is subject to export controls under Canadian export control regulations — certain aerospace and defence components require permits from Global Affairs Canada
Dangerous Goods Declaration
Some aerospace components — hydraulic accumulators, oxygen components, batteries, parts containing residual fluids — may be classified as dangerous goods under IATA or IMDG regulations. If your component has any dangerous goods characteristics, a Shipper's Declaration for Dangerous Goods must accompany the shipment and the packaging must meet the applicable dangerous goods packaging standard.
This is an area where involving a freight forwarder with dangerous goods expertise early is essential — not an afterthought.
Airworthiness release document confirmed and included (8130-3, Form 1, C of C)
Commercial invoice with accurate part number, description, and value
Packing list with serial numbers
HS code confirmed with customs broker
Export permit status verified
Dangerous goods assessment completed
ISPM-15 compliance documentation included
[PHOTO PLACEMENT 6: Infographic of the complete aerospace shipping checklist — packaging and documentation combined]Alt text: "Aerospace component shipping checklist covering packaging requirements and documentation for MRO and aftermarket shippers"Caption: "Use this checklist before every aerospace component shipment — packaging and documentation failures are both avoidable"
Common Mistakes MRO and Aftermarket Shippers Make
Shipping without release documentation. The part arrives, the documentation does not. The receiving facility cannot install the part until paperwork is located — which may take days or weeks and can disrupt an aircraft's maintenance schedule.
Using generic foam without engineering the contact points. Foam that contacts a machined surface, bearing race, or coated area can cause fretting, marking, or contamination. Always specify where the component can and cannot be contacted.
Skipping VCI protection for short transits. Corrosion does not require a six-week ocean voyage to develop. A three-day truck move through winter temperature swings can generate enough condensation inside an unsealed crate to begin surface oxidation on bare aluminum.
Assuming ESD protection is only for complete avionics boxes. Loose wiring harnesses, connectors, sensors, and sub-assemblies are equally ESD-sensitive and equally unprotected by standard packaging.
Not verifying export control status. Certain aerospace components — particularly those with military applications or controlled technology — require export permits. Shipping without one is a regulatory violation regardless of the destination or the innocuous appearance of the part.
Final Thought
Aerospace components are not just high-value freight — they are regulated articles whose airworthiness, traceability, and condition must be preserved through every step of the supply chain. The packaging and documentation are part of that chain.
If you are shipping aerospace components for MRO or aftermarket distribution and need a crating partner who understands the requirements — surface protection, engineered blocking, ISPM-15 compliance, and documentation coordination — Argos Crating works with aerospace suppliers and distributors across the Toronto area and Ontario.
Shipping aerospace components? Get a free assessment today:
Argos Crating is an ISPM-15 certified custom crating and export packaging company based in Toronto, Ontario, specializing in precision aerospace, industrial, and high-value component packaging for manufacturers and distributors across Canada.