Due to an unspecified mechanical issue, American Airlines flight 3551 (Embraer 145) en route from Norfolk to Miami diverted to Jacksonville and made an emergency landing on April 8, 2013.
No injuries were reported. None of the 3 crew or 38 passengers were injured; and the passengers were provided an alternative flight to Miami.

JetBlue flight B6-1204 had to return and make an emergency landing in Santo Domingo, Dominican Republic, on February 25th.
JetBlue flight 429 had to divert and make an emergency landing at Sioux Falls Regional Airport, Sioux Falls, South Dakota, on August 11th.