WASHINGTON (Kyodo) -- U.S. forces said Monday they are again temporarily pausing all flights of their V-22 Osprey variants due to safety issues.

The Naval Air Systems Command said it recommended Friday an operational pause for Osprey aircraft flights as there was recently a precautionary landing of a CV-22. It said the proposal was made "out of an abundance of caution," although there were no injuries to the crew.

The command also said the Defense Department has notified Japan of its recommendation. The suspension comes after the U.S. military grounded all its Ospreys worldwide for months following a crash in November last year that killed eight U.S. service members in Japan.

Ospreys -- which take off and land like helicopters but can fly like planes due to their tilt rotors -- have a history of accidents and the fatal crash was the deadliest involving the U.S.-made aircraft.

On Monday, in response to the recommendation, the U.S. Air Force, Navy, and Marine Corps separately confirmed the Osprey grounding with Kyodo News.

"The Marine Corps has decided to implement a 96-hour operational pause for nonessential flight operations" starting Friday, a spokesperson said, adding that the suspension "will give us time to determine if any additional measures are necessary to ensure the continued safety and effectiveness of this critical capability."

The Marines said the suspension also covers those in Japan and other parts of the world.

The Associated Press reported that a near crash involving the aircraft happened on Nov. 20 at Cannon Air Force Base in New Mexico, which had similarities to the incident off the coast of Japan.

In August, the Air Force released an investigation report on the crash that occurred in southwestern Japan during a routine exercise, saying it was caused by a gearbox failure and faulty decision-making by its crew in response to the malfunction.

The crash also prompted Japan's Self-Defense Forces to ground their fleet of 14 Ospreys.

Both U.S. and Japanese forces said in March they would gradually return the planes to the sky.