Originally Posted by
80ktsClamp
Both engines shed their cowling covers on this BA emergency today with smoke in the cabin. Look at the smoke coming from the engine, too. Going to be interesting to see what caused this one.

That's easy...
contract maintenance
seriously though, both engines shedding the cowls is most likely caused by improperly latched cowls...
Not hard for a departing cowl to tear an oil or hydraulic line...
Normally when improperly latched, they tear off and all is well:
Cheers
George