Aerospace Aluminum Cases: ATA 300 & AS9100D

A Honeywell HTF7000 turbofan engine fuel control unit ($85,000-$120,000) shipped from an MRO facility in Phoenix to an airline maintenance base in Frankfurt arrived with a damaged fuel metering valve. The cause? A standard wooden crate with 25mm of loose-fill polystyrene that shifted during air freight, allowing the 15kg unit to move 15mm inside the crate and impact the crate wall during a 12g handling drop at Frankfurt Airport. The repair required a replacement fuel metering valve ($8,500), a full re-calibration of the fuel control unit ($6,200 in engineering time), and a 5-day delay in the airline’s engine maintenance schedule. The airline’s delay cost was $25,000 per day (a typical airline has $15,000-$50,000 per day in delay costs for engine maintenance, including aircraft rental, labor, and lost revenue)—so the total cost of that damaged fuel metering valve was $144,700.

Aerospace and aviation equipment spans the entire aircraft system: from avionics and electronics (flight management systems, navigation systems, communication systems, radar systems, weather systems, autopilot systems, display systems) that manage aircraft operations, to propulsion and power (engines, APU (Auxiliary Power Unit), generators, inverters, converters, battery systems) that power aircraft, to flight controls and hydraulics (actuators, servo valves, hydraulic pumps, control surfaces, landing gear) that control aircraft, to cabin and interior (seats, galleys, lavatories, lighting, HVAC, entertainment systems) that make up aircraft interiors, to maintenance and tooling (engine stands, tool kits, test equipment, calibration equipment, ground support equipment) that maintain aircraft. What unites them is that every component is part of a system where a single failure can cause an aircraft-on-ground (AOG) situation (which can cost $10,000-$150,000 per day for commercial aircraft), a safety issue (from avionics or flight control failures), or in extreme cases, a passenger incident. The transit case isn’t packaging—it’s the first line of defense against equipment damage during transport, and it must be specified to the same engineering rigor as the equipment it protects.

Regulatory Framework: ATA 300, AS9100D, and Aerospace Standards

Aerospace equipment transport cases must support compliance with a complex web of standards. For packaging, ATA Spec 300 (Packaging of Airline Supplies and Equipment) specifies packaging requirements for airline supplies and equipment, including Category I (returnable containers for high-value items), Category II (returnable containers for medium-value items), and Category III (one-way containers for low-value items), and the transit case must meet the requirements specified by ATA Spec 300 (including durability, stackability, labeling, and documentation requirements). For quality management, AS9100D (Quality Management Systems—Requirements for Aviation, Space, and Defense Organizations) specifies quality management requirements for aerospace organizations, including risk-based thinking, product safety, and counterfeit part prevention, and the transit case must support the documentation chain required by AS9100D (including material traceability, process documentation, quality records, and audit trails).

For ESD (Electrostatic Discharge), ANSI/ESD S20.20 (Protection of Electrical and Electronic Parts, Assemblies and Equipment) specifies requirements for ESD protection programs, and the transit case must use ESD-safe materials (surface resistance 10^6-10^9 Ω/sq for foam, 10^4-10^6 Ω/sq for conductive materials) to prevent ESD damage to electronic components (which can be damaged by electrostatic discharge as low as 50V). For vibration and shock, RTCA DO-160G (Environmental Conditions and Test Procedures for Airborne Equipment) specifies environmental test procedures for airborne equipment, including vibration (Category 1: fixed-wing aircraft, Category 2: rotorcraft, Category 3: high-performance fixed-wing aircraft) and shock, and the transit case must meet the vibration and shock requirements specified by RTCA DO-160G (including vibration isolation with natural frequency 3-8 Hz, and shock protection for 10-15g impacts). For flammability, FAR 25.853 (Fire Protection for Interior Components in Transport Category Airplanes) specifies flammability requirements for interior components in transport category airplanes, including vertical burn test, 45-degree burn test, and 60-second burn test, and the transit case must use materials that meet FAR 25.853 requirements (including low-flame-spread, low-smoke, low-toxicity materials such as aluminum and closed-cell foam). For hazardous materials, IATA DGR (Dangerous Goods Regulations) specifies requirements for transporting dangerous goods by air, including lithium batteries, aerosols, and other hazardous materials, and the transit case must meet the requirements specified by IATA DGR (including UN-certified packaging for hazardous materials, proper labeling, and documentation). For traceability, AS9102 (First Article Inspection Report) specifies requirements for first article inspection reports, and the transit case must support the documentation chain required by AS9102 (including material certificates, process documentation, and inspection records).

Avionics, Engines, and Flight Controls: Core Equipment Transport

Avionics and electronics (flight management systems, navigation systems, communication systems, radar systems, weather systems, autopilot systems, display systems, GPS systems, transponders) are typically shipped as complete units with electronics, connectors, mounting hardware, and documentation. The most critical areas are: ESD-sensitive components (which can be damaged by electrostatic discharge as low as 50V), connector pins (which can be bent or broken by impact or by improper support, causing poor electrical contact or system failure), and calibration (avionics equipment requires precise calibration of timing, frequency, voltage, and signal levels, which can be affected by vibration during transport). Our avionics and electronics cases use: ESD-safe foam (surface resistance 10^6-10^9 Ω/sq) for all electronic components, connector protection (custom foam caps or plastic caps for all connector pins and communication ports), calibration protection (custom foam that holds each component in its calibrated position, with zero-contact foam on all precision adjustment mechanisms), and tamper-evident seals (for chain-of-custody documentation—since avionics equipment is safety-critical and must be installed and commissioned by certified personnel).

Engines and propulsion (turbofan engines, turboprop engines, turboshaft engines, APU (Auxiliary Power Unit), generators, inverters, converters, battery systems, fuel systems) are typically shipped as complete units or components with precision components, cooling systems, control systems, and documentation. The most critical areas are: precision components (which can have tolerances of ±0.001mm, and must not be damaged by impact or by vibration, causing engine performance problems or failure), ESD-sensitive components (which can be damaged by electrostatic discharge as low as 50V), and calibration (engine components require precise calibration of fuel flow, timing, and performance parameters, which can be affected by vibration during transport). Our engines and propulsion cases use: precision component protection (custom foam with zero-contact foam on precision components, and custom component protectors to prevent damage), ESD-safe foam (surface resistance 10^6-10^9 Ω/sq) for all electronic components, calibration protection (custom foam that holds each component in its calibrated position, with zero-contact foam on all precision adjustment mechanisms), and shock-isolated sub-crates (wire rope isolators, natural frequency 5-8 Hz, for engine components that can weigh 50-5,000kg). Flight controls and hydraulics (actuators, servo valves, hydraulic pumps, control surfaces, landing gear, brake systems, steering systems) are typically shipped as complete units with precision components, hydraulic systems, control systems, and documentation. The most critical areas are: precision components (which can have tolerances of ±0.005mm, and must not be damaged by impact or by vibration, causing flight control problems or failure), hydraulic ports (which must not be damaged or contaminated during transport, as contamination can cause hydraulic system failure), and calibration (flight control components require precise calibration of travel, force, and timing, which can be affected by vibration during transport). Our flight controls and hydraulics cases use: precision component protection (custom foam with zero-contact foam on precision components, and custom component protectors to prevent damage), hydraulic port protection (custom caps for all hydraulic ports to prevent damage and contamination), calibration protection (custom foam that holds each component in its calibrated position, with zero-contact foam on all precision adjustment mechanisms), and IP65 sealing (continuous silicone gaskets, for protection against dust and moisture during transport and storage).

Cabin Interior, Maintenance Tooling, and Hazardous Materials: Specialized Transport Requirements

Cabin and interior components (seats, galleys, lavatories, lighting, HVAC, entertainment systems, overhead bins, window shades, floor panels) are typically shipped as complete units with components, mounting hardware, and documentation. The most critical areas are: precision components (which can have tolerances of ±0.1mm, and must not be damaged by impact or by vibration, causing fit and finish problems), ESD-sensitive components (which can be damaged by electrostatic discharge as low as 50V), and fire safety (cabin and interior components must meet FAR 25.853 fire safety requirements, and the transit case must use materials that meet these requirements). Our cabin and interior component cases use: precision component protection (custom foam with zero-contact foam on precision components, and custom component protectors to prevent damage), ESD-safe foam (surface resistance 10^6-10^9 Ω/sq) for all electronic components, fire-safe materials (aluminum panels + closed-cell foam, both meeting FAR 25.853 requirements for low flame spread, low smoke, and low toxicity), and IP65 sealing (continuous silicone gaskets, for protection against dust and moisture during transport and storage).

Maintenance and tooling (engine stands, tool kits, test equipment, calibration equipment, ground support equipment, tow bars, jacks, maintenance platforms) are typically shipped as complete units with tools, components, mounting hardware, and documentation. The most critical areas are: calibration (maintenance and testing equipment requires precise calibration of measurement ranges, zero points, and span, which can be affected by vibration during transport), ESD-sensitive components (which can be damaged by electrostatic discharge as low as 50V), and tool protection (tools can be damaged by impact or by improper support, causing measurement errors or tool failure). Our maintenance and tooling cases use: calibration protection (custom foam that holds each component in its calibrated position, with zero-contact foam on all precision adjustment mechanisms), ESD-safe foam (surface resistance 10^6-10^9 Ω/sq) for all electronic components, tool protection (custom foam compartments for each tool, with custom tool protectors to prevent damage), and IP65 sealing (continuous silicone gaskets, for protection against dust and moisture during transport and storage at airport maintenance facilities). Hazardous materials (lithium batteries, aerosols, paints, solvents, adhesives, oxygen generators, life rafts, emergency beacons) are typically shipped in UN-certified packaging with proper labeling and documentation. The most critical areas are: containment (hazardous materials must be contained without leaking during transport, as leaks can cause safety hazards or regulatory violations), labeling (hazardous materials must be properly labeled with UN numbers, hazard classes, and handling instructions), and documentation (hazardous materials must be accompanied by proper documentation, including dangerous goods declarations, material safety data sheets, and shipping papers). Our hazardous materials cases use: UN-certified packaging (for hazardous materials that require UN-certified packaging per IATA DGR), proper labeling (custom labels with UN numbers, hazard classes, and handling instructions), documentation compartments (waterproof document holders for dangerous goods declarations, material safety data sheets, and shipping papers), and tamper-evident seals (for chain-of-custody documentation—since hazardous materials are regulated and must be handled by certified personnel).

Case Design Specifications and OEM/ODM Capabilities

Our standard aerospace equipment case specification includes: 2mm thick 5052-H32 aluminum panels (or 3mm for heavy-duty applications over 50kg payload, or 4mm for engine components that must meet structural requirements), Type II anodized (15-25μm) plus polyester TGIC powder coating (60-80μm) in matte black, gray, or custom color; continuous silicone gaskets (Shore A 50-60) providing IP65 sealing (IP67 available as option); 304 or 316 stainless steel hardware (latches, hinges, handles, rivets)—316 stainless steel is preferred for aerospace applications, as it is more corrosion-resistant and easier to clean; CNC-cut closed-cell XLPE foam (40-80 kg/m³, customer-specified density based on payload weight and fragility) with ESD-safe option (surface resistance 10^6-10^9 Ω/sq); heavy-duty draw latches (Southco or equivalent) with rubber bumpers; folding side handles (for cases over 15kg) or top handle (for cases under 15kg); stacking corners (recessed, for secure stacking); and a waterproof document holder (A4 size, inside lid).

Every aerospace equipment case we build is custom-sized to your equipment’s exact dimensions, with CNC-cut foam cavities that hold each component in its operational orientation. We don’t sell stock cases for aerospace equipment—because a 5mm gap means 5mm of potential movement during transport, and that’s where connector damage, ESD damage, and calibration drift start. Typical lead time is 15-25 working days for first article (including design, prototyping, and customer approval), then 20-30 working days for production batches of 10-100 units. MOQ is 5 units per design. Pricing depends on size, complexity, and certification requirements. A typical avionics component case (300×200×100mm, 1kg payload, ESD-safe foam, connector protection, calibration protection, tamper-evident, IP65) ranges from $80-$150 FOB Changzhou. A typical transponder case (500×400×200mm, 10kg payload, ESD-safe foam, connector protection, calibration protection, tamper-evident, IP65) ranges from $180-$300 FOB. A typical engine component case (800×600×400mm, 50kg payload, precision component protection, ESD-safe foam, calibration protection, shock-isolated sub-crate, IP65) ranges from $400-$700 FOB. A typical flight control actuator case (1000×600×400mm, 80kg payload, precision component protection, hydraulic port protection, calibration protection, IP65) ranges from $500-$800 FOB. Volume discounts of 15-25% apply for orders over 50 units.