He and his father were accused of being abusive to flight crew . They also were accused of refusing pilot 's warning to stop smoking pot . Federal officials have cleared singer Justin Bieber and his fellow air passengers after an investigation into whether they interfered with a flight crew in January . Airbus said it ` ` found no evidence that the passengers violated '' regulations .
He and his father were accused of being abusive to flight crew . They also were accused of refusing pilot 's warning to stop smoking pot . Airbus said it ` ` found no evidence that the passengers violated '' regulations .