Crj crew had an EICAS warning of an overheated left bleed duct.

Attributes
ACN	551784
Time
Date	200206
Day	Thu
Place
Locale Reference	airport : okc.airport
State Reference	OK
Altitude	msl single value : 5000
Aircraft 1
Controlling Facilities	tracon : okc.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	551784
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : eicas other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : landed as precaution none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Precautionary return to okc. Approximately 2 mins after takeoff, the left bleed duct warning and caution message illuminated. We leveled off at 5000 ft and reviewed the environmental control system synoptic page and the left and xover bleed lines indicated red. After approximately 1 min, the red left bleed duct warning message went out and the left bleed duct caution message remained. We requested a precautionary return to okc due to a bleed air problem. We consulted the aircraft flight manual and followed the procedures outlined in the emergency section. Several attempts to re-establish bleed air were unsuccessful because the engine bleed valves would not open. I instructed the first officer to inform the flight attendants and make a PA about our return to okc. ATC asked if we needed crash fire rescue equipment, and I advised them I would like to have them standing by just as a precautionary measure only. A normal landing was made and we taxied to the gate where the passenger were contacted and advised of the situation and of our return to okc.

Original NASA ASRS Text

Title: CRJ CREW HAD AN EICAS WARNING OF AN OVERHEATED L BLEED DUCT.

Narrative: PRECAUTIONARY RETURN TO OKC. APPROX 2 MINS AFTER TKOF, THE L BLEED DUCT WARNING AND CAUTION MESSAGE ILLUMINATED. WE LEVELED OFF AT 5000 FT AND REVIEWED THE ENVIRONMENTAL CTL SYS SYNOPTIC PAGE AND THE L AND XOVER BLEED LINES INDICATED RED. AFTER APPROX 1 MIN, THE RED L BLEED DUCT WARNING MESSAGE WENT OUT AND THE L BLEED DUCT CAUTION MESSAGE REMAINED. WE REQUESTED A PRECAUTIONARY RETURN TO OKC DUE TO A BLEED AIR PROB. WE CONSULTED THE ACFT FLT MANUAL AND FOLLOWED THE PROCS OUTLINED IN THE EMER SECTION. SEVERAL ATTEMPTS TO RE-ESTABLISH BLEED AIR WERE UNSUCCESSFUL BECAUSE THE ENG BLEED VALVES WOULD NOT OPEN. I INSTRUCTED THE FO TO INFORM THE FLT ATTENDANTS AND MAKE A PA ABOUT OUR RETURN TO OKC. ATC ASKED IF WE NEEDED CFR, AND I ADVISED THEM I WOULD LIKE TO HAVE THEM STANDING BY JUST AS A PRECAUTIONARY MEASURE ONLY. A NORMAL LNDG WAS MADE AND WE TAXIED TO THE GATE WHERE THE PAX WERE CONTACTED AND ADVISED OF THE SIT AND OF OUR RETURN TO OKC.

Data retrieved from NASA's ASRS site as of July 2007 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.