UAL2638 PDX-EWR Emergency Divert to KGRB

United 2638 enroute from PDX to EWR declared emergency and diverted to KGRB. The flight was at FL370 when it began a rapid descent which at times was as high as 4500 feet per minute. The nature of the emergency has not yet been report (to my knowledge). (www.msn.com) עוד...