Emb crew returned to their departure airport with a rough running engine.

Attributes
ACN	603315
Time
Date	200312
Day	Fri
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 1015
Aircraft 1
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	Embraer Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	603315
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed as precaution other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Flight interruption/return to gate. At approximately 1015 ft when selecting climb mode during climb out, #2 engine began to run rough. We called tower and immediately returned to ord. Landing was not overweight. No emergency was declared, no crash fire rescue equipment requested. Engine continued to run throughout the event.

Original NASA ASRS Text

Title: EMB CREW RETURNED TO THEIR DEP ARPT WITH A ROUGH RUNNING ENG.

Narrative: FLT INTERRUPTION/RETURN TO GATE. AT APPROX 1015 FT WHEN SELECTING CLB MODE DURING CLBOUT, #2 ENG BEGAN TO RUN ROUGH. WE CALLED TWR AND IMMEDIATELY RETURNED TO ORD. LNDG WAS NOT OVERWT. NO EMER WAS DECLARED, NO CFR REQUESTED. ENG CONTINUED TO RUN THROUGHOUT THE EVENT.

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.