Nervous passengers last night boarded a LATAM airlines flight for Santiago - still not knowing what caused Monday's terrifying midair nose-dive. 
The Boeing 787 Dreamliner suddenly lost altitude on a flight from Sydney to Auckland - sending passengers flying around the cabin and injuring 50.
When it landed at Auckland 45 minutes later, twelve people were taken to hospital, including a child. 
Maia Ingoe has more.