The ship and its approximately 3,300 passengers arrived in San Diego on Thursday , four days after a fire in the engine room left the ship without air conditioning , hot showers or refrigeration one day into a scheduled seven-day cruise along the Mexican coast . NEW : Maritime law gives crew discretion on informing passengers of incidents . Officials from Panama are investigating the incident on the cruise ship . Some passengers said they ate mayonnaise sandwiches .
NEW : Maritime law gives crew discretion on informing passengers of incidents . Officials from Panama are investigating the incident on the cruise ship . Some passengers said they ate mayonnaise sandwiches .