647. We have a navigation malfunction. Request diversion to a suitable  airport that has less complex terrain. 

648. Our oxygen pressure is dropping rapidly. Request to fly heading  050 and descent to FL180 to escape from the mountainous area. 

649. The NOTAM says the ILS is unserviceable, but we are still picking  up the Morse Code, confirm it is still in operation. 

650. We have an engine failure. Following ETOPS procedure, request  descent to FL200, maintain high speed and proceed direct to alternate airport.

651. We cannot provide oxygen to the passengers as we are not sure  where the smoke is coming from. 

653. There was heavy smoke in the cabin before we ventilated the  aircraft. Request medical assistance for passengers after landing. 

 654. The aircraft is depressurized. We are descending. Confirm 10,000  feet is enough to clear terrain until we reach our alternate. 

655. We are no longer getting bleed air from the right engine. Request  immediate descent to leave the icing area. 

656. Our APU bleed air malfunctioned during engine startup. We are  calling the ground staff, standby. 

658. We are unable to restart engine number one with bleed air. Request  high speed for a windmill air start. 

659. Both engine bleed air systems have failed and we are relying on  APU bleed for air conditioning. Request descent to 14, 000 feet. 

663. Disregard my last CPDLC request for climb. We have a system  problem and will maintain present level for now. 

 665. We just had an APU fire warning, and discharged the fire  extinguisher, Request visual check if there is smoke coming from our tail section. 

666. Another aircraft has seen a lot of smoke coming from our APU. We  are evacuating. Request emergency services. 

668.  We have a generator failure and cannot start our APU at this  altitude. Request descent to perform APU startup. 

669. A passenger has opened an over-wing emergency exit. The slide  has deployed. Request to cancel our slot time. 

670. A passenger tried to unlock the cabin door in flight, the cabin crew  restrained him. Request airport police on arrival.  

672. Smoke is coming from the cabin floor. We are performing an  evacuation. All slides have been deployed. 

675. We have smoke coming from our avionics bay. Advise the fire  fighters that it might be an electrical fire. 

679. Our thrust lever is not responsive. We cannot reduce thrust on  engine Number One. Request holding.