"If they continue to dismantle the vessel without allowing the parties involved to perform the necessary checks, we will not hesitate to raid the Concordia along with survivors," said president Carlo Rienzi.
Problems with the Concordia's black box voyage data recorder (VDR) emerged on January 9, according to correspondence acquired by investigators. It was claimed yesterday that the VDR was not working at the time of the collision.
In one of a series of emails in the days before the disaster, Costa Cruise's technical director, Pierfrancesco Ferro, told a repair firm: "The VDR has broken down for the umpteenth time ... The situation is becoming unbearable."
The emails, in which he refers to the faulty device, began on January 10. The correspondence indicates there were plans to resolve the problem at Savona on January 14.
In a statement yesterday, Costa Cruises said the VDR "had only issued an error code".
"This in no way meant that the device was out of service, as is demonstrated by the fact that the data it contained were perfectly in line with engineers' expectations."
It added: "There is no international regulation or convention that prohibits a ship from sailing in a similar situation."
Codacons, however, disagreed. "The bottom line is that the ship should never have set sail in that condition," Rienzi, a lawyer, said. "Maritime law clearly states a vessel has to be fully functioning."
The company also denied that a power failure affected the vessel's lifts, or the closure of the sealed doors. But it has not commented on the statement by one crew member, Simone Canessa, that doors meant to have been sealed were open at the time of the impact as "this was a practice used during the navigation to ease the flow of people who were at work".
On the claims regarding "unauthorised" sea charts, Costa Cruises said "the ship was equipped with all the paper and electronic nautical charts needed to complete the voyage planned - but what is most worth remembering is that the ship should never have been sailing so close to the coast".
WHAT'S INVOLVED
* Francesco Schettino, the Concordia's captain, is being investigated for multiple manslaughter and abandoning ship before all of the 4229 passengers and crew had escaped.
* Eight others, including three executives from Costa Cruises, are under investigation.
* Operations to remove the shipwreck began in June and are expected to take up to a year to complete.
* The results of technical analysis will be revealed at a court hearing on July 21.
- Independent