CRJ200 flight crew has an anti-icing valve failure during descent into cvg.

Attributes
ACN	716534
Time
Date	200611
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : cvg.airport
State Reference	OH
Altitude	msl single value : 11000
Environment
Flight Conditions	IMC
Weather Elements	Snow
Light	Night
Aircraft 1
Controlling Facilities	tracon : cvg.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	arrival star : mosey.5
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Experience	flight time total : 13000 flight time type : 5000
ASRS Report	716534
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 41 flight time total : 6900 flight time type : 15
ASRS Report	716532
Events
Anomaly	aircraft equipment problem : less severe inflight encounter : weather inflight encounter other other anomaly
Independent Detector	aircraft equipment other aircraft equipment : eicas warning other flight crewa other flight crewb
Resolutory Action	flight crew : exited adverse environment
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Descending into cvg on the mosey five arrival. We turned off the cowl anti-ice while between layers; and got a cowl anti-ice caution message. The QRH called for us to leave icing conditions. In that there was a layer of rain/snow mix from about 10500 ft down to 8000 ft; we elected to avoid icing in the descent by controling total air temperature with airspeed; maintaining 300+ KTS until out of the precipitation. We coordinated this action with ATC. This resulted in our getting head-of-the-line privileges; as ATC had to break out a plane or two ahead of us on the downwind. The QRH procedure for this fault is inadequate to the point of being a hazard.

Original NASA ASRS Text

Title: CRJ200 FLT CREW HAS AN ANTI-ICING VALVE FAILURE DURING DSCNT INTO CVG.

Narrative: DSNDING INTO CVG ON THE MOSEY FIVE ARR. WE TURNED OFF THE COWL ANTI-ICE WHILE BTWN LAYERS; AND GOT A COWL ANTI-ICE CAUTION MESSAGE. THE QRH CALLED FOR US TO LEAVE ICING CONDITIONS. IN THAT THERE WAS A LAYER OF RAIN/SNOW MIX FROM ABOUT 10500 FT DOWN TO 8000 FT; WE ELECTED TO AVOID ICING IN THE DSCNT BY CTLING TOTAL AIR TEMP WITH AIRSPD; MAINTAINING 300+ KTS UNTIL OUT OF THE PRECIP. WE COORDINATED THIS ACTION WITH ATC. THIS RESULTED IN OUR GETTING HEAD-OF-THE-LINE PRIVILEGES; AS ATC HAD TO BREAK OUT A PLANE OR TWO AHEAD OF US ON THE DOWNWIND. THE QRH PROC FOR THIS FAULT IS INADEQUATE TO THE POINT OF BEING A HAZARD.

Data retrieved from NASA's ASRS site as of January 2009 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.