joh wrote:
In Malta, three bendy buses formerly on service in London have caught
fire. The entire fleet has been withdrawn temporarily, as an article from
the Times of Malta newspaper reports.

http://www.timesofmalta.com/articles/view/20130827/local/fire-on-route-bus.483763

(While the page is shown with restrictions for readers outside of Malta,
you can still read the article in full by viewing the page source.)

Times of Malta reports that three buses have caught fire within three
days, after six less serious incidents since the beginning of this year.
No passengers were harmed. The Maltese Transport Ministry and transport
authority have instructed Arriva Malta to withdraw all their bendy buses
from service while investigations are under way, starting yesterday
night. Arriva said their buses were safe, and that they could not rule out arson.

Was the spontaneous combustion problem in London fixed by mechanical
modifications to the buses, or just a change of operating
procedures/maintenance? If the latter, perhaps the modified procedures
haven't been followed in Malta?