Two men, aged 30 and 41, have been removed from the aircraft and taken to a police station for questioning, Essex Police said.
More top news
Patrols including local volunteers have been set up after the grisly finds in Thamesmead in the last month.
Thieves targeted a property in Richmond on Monday afternoon.
The station, which saw 44m people commuters use it in 2016/2017, will be transformed into a dining room complete with Christmas decorations.