The team aboard the research vessel Atlantis who located the sunken El Faro’s voyage data recorder (VDR) has determined it will not be possible to recover the VDR during the current mission.

The team of investigators and scientists aboard Atlantis collaborated with investigators at the National Transportation Safety Board lab in Washington and determined that given the VDR’s proximity to the mast and other obstructions, recovery of the VDR cannot be accomplished with the equipment currently available on the ship.

Video and photographic images revealed that the VDR appears to remain attached to a steel beam connected to the mast structure, NTSB said.

“Now that we have been able to see just how the VDR is oriented relative to the mast structure, it’s clear that we’re going to need specialized deep-water salvage recovery equipment in order to bring it up,” said Brian Curtis, acting director of the NTSB Office of Marine Safety. “Extracting a recorder capsule attached to a four-ton mast under 15,000 feet of water presents formidable challenges, but we’re going to do everything that is technically feasible to get that recorder into our lab.”

The team will continue to gather imagery of the El Faro hull and debris field. Atlantis is expected to depart the site April 30 and arrive in Woods Hole, Massachusetts, May 05.

The U.S. flagged El Faro sank during Hurricane Joaquin on October 1, 2015. All 33 of the El Faro’s crew perished in the accident.

In October and November of 2015, the NTSB conducted an initial search mission to locate the sunken vessel and conduct an initial survey of the debris field.