( CNN ) -- A Singapore Airlines flight to Hong Kong had to turn back in mid-flight Friday after the pilots received an alert about a problem with a cargo door on the plane , the company said . The aircraft , an Airbus A380 superjumbo , returned to Singapore 's Changi airport on Friday afternoon `` as a result of a cockpit warning relating to a cargo door , '' the airline said in an e-mailed statement . Flight SQ 866 landed safely back at Changi at 2:20 p.m. local time , Singapore Airlines said , adding that passengers would be transferred to a replacement flight to Hong Kong . The airline did n't provide further details about the incident , nor did it immediately respond to a question from CNN about whether the cargo door issue affected cabin pressure . The replacement aircraft was expected to arrive in Hong Kong at 8:40 p.m. , more than three and a half hours after the original scheduled arrival time , according to the Singapore Airlines website . The double-decker A380 is capable of carrying more passengers than any other commercial aircraft . CNN 's Euan McKirdy contributed to this report .
A cockpit warning about a cargo door went off mid-flight on an Airbus A380 . The superjumbo , headed for Hong Kong , turned back to Singapore , the airline says . It landed safely and passengers were transferred to a replacement plane .