Overview
ISO 9469:1991 - Air cargo equipment: Unit load devices for transportation of horses specifies minimum design, performance and operational requirements for unit load devices (ULDs) used to transport horses by air. The standard addresses two ULD types: Type 1 (airworthiness‑certified structural units complying with ISO 8097) and Type 2 (non‑certified units designed to work with standard pallets, nets or straps). ISO 9469 focuses on animal welfare, aircraft protection (e.g., corrosion from waste), handling, cleaning and safe restraint during air carriage.
Key topics and technical requirements
- Scope & classes: Accommodates one or more horses; horses are grouped into three classes by size and mass (examples from the standard: Class I small - height to withers up to ~1 420 mm; Class II medium - up to ~1 650 mm; Class III large - up to ~1 875 mm).
- Structural design:
- Materials suitable for airline environments and corrosion protection.
- Interiors padded to at least 750 mm above floor; lower sides protected with ~50 mm coconut matting.
- No sharp projections; reinforcements covered; halter rope securing points provided.
- Removable separation walls for multi‑horse stalls; vertical clearance to floor ≤ 51 mm.
- Floor & drainage:
- One‑piece leak‑proof pan (minimum depth 51 mm) or permanently sealed joints (e.g., welded).
- Rear doors/doors splash‑proof with overlap to prevent leaks.
- Cleaning & durability:
- Stall must withstand steam cleaning up to 110 °C; designed for repeated assembly/disassembly where applicable while retaining liquid integrity.
- Compatibility & securing:
- Type 1: airworthiness approval per ISO 8097.
- Type 2: compatible with ISO 8097 pallets/nets; include tie‑down points and restraint diagrams for different pallet configurations.
- Testing & markings:
- Racking test: maximum peripheral displacement ≤ 38 mm; no permanent deformation.
- Markings: manufacturer, part number, tare weight (characters 25.4 mm high), A5 placard holder for destination; tie‑down diagrams for Type 2.
Applications and users
ISO 9469 is intended for:
- ULD manufacturers designing horse stalls and modular transport systems.
- Airlines, cargo operators and ground handlers specifying, certifying and maintaining horse transport equipment.
- Aircraft engineering/airworthiness authorities reviewing approvals for Type 1 units.
- Equine transport specialists and veterinarians advising on safe animal handling and welfare in air freight.
Practical benefits include improved animal welfare, reduced aircraft corrosion risk, standardized handling, and clearer responsibility for certification and maintenance.
Related standards
- ISO 8097 - certified air cargo ULD airworthiness requirements (referenced for Type 1)
- ISO 4115 / ISO 4117 / ISO 4170 - related air/land pallet and net standards
- IATA Live Animals Regulations and ULD Technical Manual - operational guidance for live animal carriage
Keywords: ISO 9469:1991, air cargo equipment, unit load devices, ULD, transportation of horses, horse stalls, ISO 8097, horse transport by air.