[movie] APU fire on a MD-11 freighter at Liège airport

The auxiliary power unit (APU) of Western Global Airlines McDonnell Douglas MD-11 freighter (N415JN) with destination Kenneth Kaunda International Airport (Lusaka), Zambia caught fire last night at Liège Airport, the aircraft was about to be pushed back. When the pilots started the APU a big blow noise, sparks then a huge flame from the tail to the ground. The flight crew triggered the fire extinguisher and the fire stopped, a few seconds later another flame came out and fire trucks rushed to the scene to extinguish the fire from the APU.