NTSB Marine Investigation Report 24-37
The $3.1 million can: how one chafing fuel canister burned a Boston dinner cruise
Federal investigators spent twenty-one months on a fire that started under a glassware cart. Their finding fits in one sentence, and every catering manager should read it twice.
At 22:52 on 24 March 2023, after the last passenger had left, a fire broke out in the deck-one wait station of the passenger vessel Spirit of Boston, moored at Commonwealth Pier. Sixteen people evacuated to the pier. Nobody was hurt. The damage came to $3.1 million.
The National Transportation Safety Board published its report on 31 December 2024. The probable cause, in the agency's words, was the improper extinguishing and disposal of a chafing fuel heating canister, due to the operator's lack of documented procedures for handling open-flame devices, which led to the ignition of a plastic glassware rolling rack.
How it happened
A member of the hospitality staff, clearing up after service, dropped a canister that was still lit. It rolled under a plastic cart of glassware. The cart ignited. Investigators later had to X-ray the fused mass of melted plastic and glass to find the canister at all.
The staff had been told how to handle the cans — verbally. There was no written procedure. There was no marine crew member left on board to execute the fire plan. The NTSB found the fire could likely have been put out early if there had been.
What the report is really about
Read it as a maritime story and it is about crew rosters. Read it as a catering story and it is simpler: a hospitality worker, at the end of a long shift, put down a small can that looked out and was not. Everything after that was physics.
Every venue that uses canned fuel has the same exposure, minus the water. A ballroom wait station has the same plastic carts. The staff are the same staff. The can is the same can.
The procedure you should write tonight
If you keep gel fuel, write down how it is extinguished, how it is confirmed extinguished, and where it goes afterwards, and make someone sign that they have read it. The NTSB's four recommendations amount to that.
Or remove the step. A cordless cell is switched off. A water-activated pack is finished when it is finished. Neither can be dropped while lit, because neither is ever lit.