About: http://webisa.webdatacommons.org/366269870

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	With that rule of thumb maybe he is including a tiny portion of the total cost of maintenance that you have to perform on the airplane any given amount of hours and others such as oil, parking/landing fees, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net