A crj-700 EICAS alerted left bleed duct; an emergency was declared; the QRH procedure accomplished; ...

Narrative:

Reposition flight. Climbing through 15;000 ft MSL in VMC; received master warning light/chimes and 'left bleed duct' warning message on ED2. Pilot not flying (first officer) complied with QRH procedure which includes descent to 10;000 ft and closure of both engine bleeds. Pilot flying (captain) contacted approach and declared emergency; requested 10;000 ft and vectors to handle situation. Upon completion of first QRH procedure; captain transferred aircraft controls to the first officer and reviewed QRH procedure; and decided to return to the departure airport. Captain resumed aircraft control and first officer continued as directed to QRH procedure 'unpressurized flight procedure - packs off'. ACARS message sent to dispatcher to alert of diversion. Flight returned to the departure airport; visual approach; normal landing. Parked at gate and called dispatch and maintenance control.

Original NASA ASRS Text

Title: A CRJ-700 EICAS alerted L BLEED DUCT; an emergency was declared; the QRH procedure accomplished; and the flight returned to the departure airport.

Narrative: Reposition flight. Climbing through 15;000 FT MSL in VMC; received Master Warning Light/Chimes and 'L BLEED DUCT' Warning message on ED2. Pilot not flying (First Officer) complied with QRH Procedure which includes descent to 10;000 FT and closure of both engine bleeds. Pilot flying (Captain) contacted Approach and declared emergency; requested 10;000 FT and vectors to handle situation. Upon completion of first QRH procedure; Captain transferred aircraft controls to the First Officer and reviewed QRH procedure; and decided to return to the departure airport. Captain resumed aircraft control and First Officer continued as directed to QRH procedure 'Unpressurized Flight procedure - Packs Off'. ACARS message sent to Dispatcher to alert of diversion. Flight returned to the departure airport; visual approach; normal landing. Parked at gate and called Dispatch and Maintenance Control.

Data retrieved from NASA's ASRS site as of July 2013 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	1069816
Time
Date	201302
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 91
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Pneumatic Ducting
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Critical

A crj-700 EICAS alerted left bleed duct; an emergency was declared; the QRH procedure accomplished; and the flight returned to the departure airport.