The Conception, built in 1981, had a 24-inch hatch and no illuminated signs.... The diving boat was one of 325 vessels built before 1996 that were grandfathered in, and therefore, not required to meet new regulations because doing so was found to be economically unfeasible and impractical, according to the Los Angeles Times.... All 33 passengers and one crew member aboard the Conception were trapped below deck where they had been sleeping in stacked bunk beds when the fire first broke out in t