11 Alert SB BR700.72-A900508 Rev 1 BR700.710A1-10 MAN NIA 22 Apr 2013 I Engine 2 (892911) Replacement of HP Turbine Rotor Engine sin 11182. Discs Due to Steel Inclusion BR700.710C4•11 Engines sin 15791, 15792. 15799, 15801, 15802. Engines must be removed from the aircraft before the affected HP turbine stage