An emb 145 #2 engine air inlet anti-ice valve did not open when engine anti-ice was selected on. An ...

Narrative:

During the climb; we encountered icing conditions. We noticed immediately that the #2 engine air inlet light did not come on. I recycled the switch and then switched the override knob to 'on' as per the QRH. The light turned on momentarily then went off again. After exiting icing conditions we proceeded to our destination (all ground below was under a cloud layer). We continued to trouble shoot during the flight while attempting to contact maintenance via ACARS and a commercial radio link. Once getting maintenance we determined that the valve was most likely stuck. We informed dispatch of our fuel and asked for a possible alternate to avoid icing. We also asked ATC about a nearby airport that was not IMC and asked for icing reports for each. Once it was determined that avoiding icing was impossible for landing; we declared an emergency. We briefed the flight attendant and the passengers of our intent to declare an emergency just as a precaution. After exiting icing conditions (on the approach) and determining that the runway was free of contamination we quickly notified the flight attendant and tower that we would have a normal landing. During icing conditions in the descent the inlet light was intermittent.

Original NASA ASRS Text

Title: An EMB 145 #2 Engine Air Inlet anti-ice valve did not open when Engine Anti-ice was selected ON. An emergency was declared for landing in icing conditions.

Narrative: During the climb; we encountered icing conditions. We noticed immediately that the #2 engine air inlet light did not come on. I recycled the switch and then switched the override knob to 'On' as per the QRH. The light turned on momentarily then went off again. After exiting icing conditions we proceeded to our destination (all ground below was under a cloud layer). We continued to trouble shoot during the flight while attempting to contact maintenance via ACARS and a commercial radio link. Once getting maintenance we determined that the valve was most likely stuck. We informed Dispatch of our fuel and asked for a possible alternate to avoid icing. We also asked ATC about a nearby airport that was not IMC and asked for icing reports for each. Once it was determined that avoiding icing was impossible for landing; we declared an emergency. We briefed the Flight Attendant and the passengers of our intent to declare an emergency just as a precaution. After exiting icing conditions (on the approach) and determining that the runway was free of contamination we quickly notified the Flight Attendant and Tower that we would have a normal landing. During icing conditions in the descent the inlet light was intermittent.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	924860
Time
Date	201012
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Climb Descent Cruise
Flight Plan	IFR
Component
Aircraft Component	Engine Air Anti-Ice
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Inflight Event / Encounter Weather / Turbulence

An emb 145 #2 engine air inlet anti-ice valve did not open when engine anti-ice was selected on. An emergency was declared for landing in icing conditions.