| Breakaway Plastic Seal | Catering carts, service panels, supply cabinets, trolleys, and access points requiring frequent inspection. | Designed to fracture or separate when unauthorized access is attempted; visible damage normally remains after opening. | Sequential serial number, barcode or QR code, and optional printed location or route code. | Fast application and removal support turnaround operations and visual checks by cabin, catering, and ramp personnel. | The seal supports a security procedure but does not itself establish compliance with aviation-security regulations. Use only where the operator's procedure permits plastic seals. | Choose a controlled numbering system, sufficient tensile performance for the application, low-temperature suitability, and clear evidence of attempted opening. |
| Fixed-Length Numbered Plastic Seal | Aircraft doors, emergency equipment cabinets, maintenance panels, and other access-controlled compartments where a fixed loop length is useful. | One-way locking mechanism and a fixed loop make cutting, substitution, or reinstallation easier to detect. | Unique serial number, machine-readable code, issue record, installation point, installer identity, and removal reason. | Suitable for checklists requiring the seal number to be read and recorded before dispatch or after servicing. | Verify that the seal does not obstruct emergency access, required equipment operation, inspection points, or aircraft maintenance procedures. | Match loop length and locking geometry to the attachment point; avoid excessive slack that could permit manipulation. |
| Adjustable Plastic Pull-Tight Seal | Baggage containers, supply bags, ground-service equipment, and temporary security closures. | Locking head and serrated strap show evidence of cutting, forced pulling, or replacement. | Sequential numbering, barcode, QR code, color coding, and optional batch identification. | Flexible installation accommodates different closure sizes and supports rapid reconciliation during handovers. | Use only in applications where the operator accepts adjustable plastic seals and where the seal cannot be bypassed by reaching through the closure. | Specify strap strength, resistance to common aviation fluids, legibility after handling, and compatibility with scanners used at the station. |
| Metal Cable Seal | Cargo containers, high-value shipments, bonded stores, access doors, and closures exposed to higher mechanical loads. | Cut cable, deformed locking body, or disturbed identification provides visible evidence of interference. | Permanent serial number, barcode or QR code, batch record, seal issuance log, and documented chain of custody. | Works with procedures that require a stronger seal and documented inspection at cargo acceptance, transfer, and release. | If used for international cargo-security purposes, check whether the specific application requires a seal meeting the relevant high-security freight-seal specification, such as ISO 17712. | Confirm cable diameter, locking strength, corrosion resistance, cutting-tool controls, and whether the seal is compatible with the receiving party's acceptance rules. |
| Bolt-Type High-Security Seal | Rigid cargo containers and international freight units with compatible locking bars or hasp openings. | Removal normally requires cutting; the bolt and locking body are intended to resist casual substitution or manipulation. | Unique identification permanently marked on both components, barcode support, and documented seal-to-shipment association. | Best suited to cargo procedures with controlled application, inspection, and removal using authorized tools. | Confirm whether the shipment, route, customs program, or trading partner requires compliance with the applicable high-security seal standard and testing category. | Check bolt diameter, locking-body dimensions, minimum breaking performance, corrosion protection, and safe removal arrangements. |
| Wire-and-Lead Seal | Legacy cargo, stores, utility access, and applications where a low-cost physical indicator is acceptable. | Disturbed lead, cut wire, or altered impression can indicate opening, although detection depends heavily on inspection quality. | Stamped identifier, batch number, seal register, and manual inspection record. | May fit established procedures but is less convenient for automated scanning and high-volume digital reconciliation. | Use only after confirming acceptance by the responsible operator, cargo agent, airport authority, or customs procedure; it may not satisfy modern traceability expectations. | Prefer stronger identification, controlled issuance, and a documented inspection method when the risk assessment requires more than a basic visual indicator. |
| Electronic or NFC-Enabled Seal | Pilot programs and higher-value logistics where digital event recording, scan history, or condition monitoring is required. | Physical tamper evidence may be combined with a recorded open event, broken circuit, or mismatch between expected and actual scan history. | Unique electronic identity, time-stamped scans, user identity, location data where enabled, and exception alerts. | Can support digital cargo and ramp workflows, but requires readers, software integration, battery or passive-tag considerations, and contingency procedures. | Technology does not replace required physical security controls or approved aviation-security procedures. Protect access data and define system availability requirements. | Evaluate reader interoperability, data retention, cybersecurity, privacy, offline operation, environmental performance, and manual fallback processes. |
| Heat- or Chemical-Resistant Seal | Engine-area support equipment, galley and catering environments, cargo handling areas, and locations exposed to cleaning agents or temperature variation. | Maintains locking performance and identification under defined environmental exposure; damage remains visible after removal or attempted opening. | Laser-marked serial number, barcode, batch record, and material or production traceability documentation. | Supports procedures in which seals must remain readable and secure throughout cleaning, transport, storage, and aircraft turnaround. | Select based on the actual temperature, fluid, ultraviolet, and mechanical exposure; do not infer aircraft or fire certification from environmental resistance alone. | Request verified operating ranges, chemical compatibility data, aging information, and evidence that markings remain readable after routine handling. |
| Colored or Area-Coded Seal | Visual segregation of flight legs, service areas, shifts, security zones, or cargo status. | Color mismatch, missing seal, damaged seal, or incorrect sequence can reveal a procedural exception during a visual check. | Color is used as a secondary control alongside a unique number, barcode, or QR code; color alone is not adequate traceability. | Improves rapid checks during handovers but must be supported by written color-control rules and accessibility-conscious identification methods. | Document the meaning of each color and retain a non-color identifier to reduce errors caused by lighting, fading, or color-vision differences. | Use standardized color coding, high-contrast markings, controlled inventory, and periodic audits of unused and issued seal ranges. |
| Serialized Seal with Barcode or QR Code | Cargo acceptance, baggage and catering logistics, aircraft turnaround records, maintenance support, and multi-party handovers. | Physical damage or seal replacement is detected by comparing the visible identifier with the recorded identifier and expected transaction. | Unique ID, scan timestamp, location or station, responsible person, shipment or equipment reference, and exception history. | Strong fit for procedures requiring positive identification, two-person verification, electronic records, and reconciliation at each custody transfer. | Ensure the code remains readable after normal handling and that the digital record supports access control, auditability, retention, and approved contingency procedures. | Select error-resistant encoding, durable printing, duplicate-read prevention, offline capability, and integration with the organization's controlled records. |
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