EMB ERJ 145 ER/LR
Flight Crew Commercial
Aircraft Equipment Problem Critical
Aircraft Equipment Problem Dissipated; Flight Crew Diverted; General Declared Emergency
Aircraft
En route; at FL250 we received an EICAS message stating Engine Bleed 1 Valve Closed; about 25 seconds after we had a WING and STAB ANTI ICE FAIL and then a warning EICAS message ANTI ICE FAIL in icing conditions. I was the pilot not flying and; after consulting with the Captain; I declared an emergency; stated the problem and asked for lower. The Controller assigned us FL240 and then down to 16;000. As I retrieved my manual to troubleshoot the closed message; all of the messages went away. After discussing with the Captain; we cancelled the emergency due to the fact everything was working correctly and we continued down to 10;000 where ground contact was made leading to an uneventful visual approach to Runway 35. I reviewed my manual for all of the messages that were presented in the event they returned. All procedures were complied with and Maintenance was contacted on arrival with a description of the event.
Received WING AND STAB ANTI ICE FAIL Message on EICAS in icing conditions. Declared emergency and descended to a lower altitude out of icing. Windows on the ice panel all showed open inscriptions. Bleed #1 showed a closed advisory message on EICAS. Anti ice fail message extinguished after a descent to a lower assigned altitude.
An EMB ERJ 145 had engine bleed and anti ice problems. The QRH action by the crew; and descent resolved the problems.