Special: The Costa Concordia Disaster, 1 Year Later

(Editor's Note: This is an update to a previous story, from October 16, 2012. At the time, the senior salvage master of Titan, the company which won the bid to remove Concordia, pushed back the removal's estimated completion date from early 2013 to June 2013.)

(5:45 p.m. EDT) -- The massive job of removing the Costa Concordia wreck from waters off the coast of the Italian island of Giglio has again been pushed back, according to Costa and engineers in charge of the project.

Titan, which won the bid to remove Concordia, initially estimated the job would be done by early 2013. In October 2012, Nick Sloane, Titan's senior salvage master, said the task could take until "June at the earliest." And now, in a press conference, the team has pinpointed September as the time when they expect to be able to right and re-float the massive ship, according to an NBC News correspondent on site.

Hard granite seabeds, which make necessary drilling difficult, and the anticipation of poor winter weather have been cited as the cause for revisions to the timeline.

"If we can get done on schedule without too much of a weather impact in the winter season, then that will be a big bonus for the whole project," Sloane told AFP in October. "We hope the winter will be mild, but it probably won't."

Concordia struck a rock off the coast of the small Italian island January 13 and consequently capsized, killing 32 people.

--by Colleen McDaniel, Managing Editor; updated by Jamey Bergman, U.K. Production Editor