Photo: The Canadian Press

The helicopter carrying Kobe Bryant didn’t have a recommended warning system to alert the pilot he was too close to land but it’s not clear it would have averted the crash that killed nine as the aircraft plummeted toward a fog-shrouded hillside, federal regulators and experts said.

Pilot Ara Zobayan had been climbing out of the clouds when the aircraft banked left and began a sudden and terrifying 1,200-foot descent that lasted nearly a minute.

“This is a pretty steep descent at high speed,” Jennifer Homendy of the National Transportation Safety Board said Tuesday. "We know that this was a high-energy impact crash."

The aircraft was intact when it hit the ground, but the impact spread debris over more than 500 feet. Remains of the final victims were recovered Tuesday, and so far the remains of Bryant, Zobayan and two other passengers have been identified using fingerprints.

Determining what caused the crash will take months, but investigators may again recommend that to avoid future crashes helicopters carrying six or more passenger seats be equipped with a Terrain Awareness and Warning System (TAWS) that would have sounded an alarm if the aircraft was in danger of crashing.

The agency made that recommendation after a similar helicopter, a Sikorsky S-76A carrying workers to an offshore drilling ship, crashed in the Gulf of Mexico near Galveston, Texas, killing all 10 people on board in 2004.

The NTSB concluded if TAWS had been installed, pilots would have been warned in time to prevent hitting the water. The board recommended that the Federal Aviation Administration require the warning systems. Ten years later, the FAA eventually required such systems on air ambulances, but not other helicopters.

FAA officials had questioned whether the technology would work on helicopters, which fly lower and could trigger too many false alarms that might detract from safety.

The NTSB said FAA’s response was unacceptable, but dropped the matter.

“Certainly, TAWS could have helped to provide information to the pilot on what terrain the pilot was flying in,” Homendy said of the helicopter that was carrying Bryant.