AerCap Holdings N.V., an aircraft leasing company, engages in the lease, financing, sale, and management of commercial aircraft and engines in China, the United States, Ireland, and internationally. The company offers aircraft asset management services, including remarketing aircraft; collecting rental and maintenance rent payments, monitoring aircraft maintenance, monitoring and enforcing contract compliance, and accepting delivery and redelivery of aircraft; and conducting ongoing lessee financial performance reviews. Its aircraft asset management services also comprise periodically inspecting the leased aircraft; coordinating technical modifications to aircraft to meet new lessee requirements; conducting restructuring negotiations in connection with lease defaults; repossessing aircraft; arranging and monitoring insurance coverage; registering and de-registering aircraft; arranging for aircraft and aircraft engine valuations; and providing market research services. The company also