A Jetblue Airbus A321-200, registration N997JL performing flight B6-1701 from New York JFK, NY to Fort Lauderdale, FL (USA) with 186 passengers and 6 crew, was on final approach to Fort Lauderdale’s runway 10L when the crew initiated a go around and requested to enter a hold to work on an issue. While in the hold the crew declared emergency reporting they had no indication the left main gear was down and locked and couldn’t work out whether this was an indication problem or the gear really wasn’t down, they were still troubleshooting. The crew subsequently requested to perform the approach advising they would shut down on the runway. The aircraft landed on runway 10L about 45 minutes after the go around, smoke was reported from the left landing gear. The aircraft stopped on the runway and was shut down. Subsequently, the aircraft was towed to the apron where the passengers disembarked normally.