In early 2015, NASA awarded a contract extension to SpaceX for three additional CRS missions., a NASA Inspector General report had this mission manifested for February 2018. The flight had been delayed from 9 February and 13 March 2018. Launch occurred on 2 April 2018 at 20:30 UTC on a Falcon 9 Full Thrust rocket from Cape Canaveral Air Force Station Space Launch Complex 40. The Dragon spacecraft rendezvoused with the ISS on 4 April; it was captured by Canadarm2 at 10:40 UTC and was berthed to the Harmony module at 13:00 UTC. It remained there for just under 31 days before being unberthed by Canadarm2 in the early hours of 5 May 2018. The spacecraft was released at 13:23 UTC and autonomously backed away from the station to a safe distance before firing its thrusters for a deorbit burn at 18:06 UTC. Dragon splashed down in the Pacific Ocean at 19:03 UTC to be retrieved by a SpaceX recovery crew and transported to the Port of Los Angeles, returning of cargo to Earth. No attempt was made to recover the first stage booster; instead, the booster was used to conduct experimental maneuvers designed to test the limits of its flight trajectory.
Payload
NASA contracted for the CRS-14 mission from SpaceX and therefore determined the primary payload, date/time of launch, and orbital parameters for the Dragon space capsule. CRS-14 carried a total of of material into orbit. This includes of pressurised cargo with packaging bound for the International Space Station, and of unpressurised cargo. The unpressurised component is composed of two external station experiments, Atmosphere-Space Interactions Monitor and Materials ISS Experiment Flight Facility, and a Pump and Flow Control Subassembly orbital replacement unit for the station. Multiple payloads from national labs are also included, one of which is the RemoveDEBRIS mission which will be deployed from the ISS. The mission aims to test a harpoon and a net on test debris that the mission carries to evaluate the viability of these methods to be used in future missions to remove real space debris. At the end of the mission the RemoveDEBRIS spacecraft will deploy a large dragsail to accelerate its own deorbit to avoid becoming space debris itself. HP was also contracted by NASA to install a new inkjet printer for the US lab. The following is a breakdown of cargo bound for the ISS: