A Southwest Airlines flight heading for Hawaii was forced to return to Oakland International Airport on Monday due to a "mechanical issue," the airline said.
Flight 1281, which left the airport at about 9:30 a.m. for Kahului Airport on Maui, landed safely back in Oakland just before 12:45 p.m., according to the airline and flight-tracking service FlightAware.
The airline only described the incident as being a "mechanical issue requiring review."
The airline said the crew and passengers will use another plane to complete the journey.
"As always, Safety is Southwest’s unwavering priority, and we appreciate the support and patience of our Customers and Crew," the airline said in a statement.
Editor's Note: A previous version of this story incorrectly reported that a panel appeared to be missing from one of the engines.
Get a weekly recap of the latest San Francisco Bay Area housing news. >Sign up for NBC Bay Area’s Housing Deconstructed newsletter.