Based on the A-6 Intruder the Northrop Grumman (formerly Grumman) EA-6B Prowler primary mission is to support strike aircraft and ground forces by interrupting enemy electronics and gathering tactical intelligence. The aircraft carries 4-crew and is in service with the USN and USMC. The first USN EA-6B was retired on June 10, 2011 and the last carrier deployment by an EA-6B took place on November 14, 2014. The USN will replace the EA-6B with the Boeing EA-18G Growler. The USMC will continue using the EA-6B until 2019.