What is the fine-grained topic of the following text: Singapore Airlines Flight SQ 424 from Singapore Changi to Mumbai Chhatrapati Shivaji International Airport was flown on their 8th A380 registered 9V-SKH, operated by SQ’s Deputy Chief A380 Pilot Capt Ishakbhai Ibrahim and First Officer Sham Kumar Singh. Only return the topic.
Singapore Airlines Flight SQ 424 operated by an A380 aircraft.