The Hellenic Navy, Lockheed Martin Aeronautics and Hellenic Aerospace Industry (HAI) have officially launched a program to modernize and upgrade the Lockheed Martin P-3B Orion maritime patrol aircraft of the Hellenic Navy.
In February 2016, the U. S. Navy awarded Lockheed Martin Aeronautics a not-to-exceed USD141.9 million contract to modernize four aircraft based at Elefsis Air Base.
This contract provides for the reactivation of one aircraft and the procurement of software and hardware kits for the upgrade/modernization for four aircraft. The upgrade kits will provide an extension of service life by 15,000 flight hours. In addition, this contract provides for phased depot maintenance, a mission integration and management system, new avionics, and other ancillary hardware and services.