An AI assistant for gas tanker safety procedures
Giving crew direct access to over 1,500 QHSE documents, with source citations for safety procedures.
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Chemgas
Chemgas operates gas tankers carrying hazardous materials such as ammonia and LPG. Crew members needed reliable access to safety-critical procedures spread across a fragmented document management system.
With over fifty QHSE manuals and 1,500 vessel-specific documents, finding operational guidance was a slow, manual process. Delays or ambiguity in safety procedures pose risks when shipping hazardous chemicals. The existing third-party system's deep hierarchy made it difficult for crew to verify procedures such as cargo-to-cargo gassing up.
What SevenLab built
We developed a retrieval-augmented AI assistant that mirrors the entire document corpus into a high-dimension vector store, providing grounded answers in Dutch and English. The system features a multi-layered safety contract, including a cargo-mismatch detector and an LLM-based critic that audits every response against safety protocols before display.
Safety response review
A secondary LLM critic checks every operational answer against the source documents.
Hybrid RAG architecture
Combines dense vector search with lexical retrieval to handle both semantic queries and exact procedure-code lookups.
Cargo-aware filtering
A custom detector prevents the system from substituting guidance between different hazardous chemical cargoes.
Automated document synchronisation
A nightly sync updates the AI's knowledge base with revisions from the document-control system.
Measurable business impact
The assistant reduced safety-document search times from several minutes to seconds. A strict safety contract and a twenty-case golden regression suite support answers with citations and automated compliance checks.
The AI assistant provides our crew with immediate, reliable access to the exact safety procedures they need, even in complex scenarios. The ability to see direct citations and have every answer audited for safety gives us the confidence required for hazardous gas operations.
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