Narrative:

Small aircraft Y departed, climbed to 2000 ft MSL on heading 320 degrees. The widebody transport X was in line at different runway. After departure, the widebody transport X was turned to heading 360 degrees after departing, anticipating they would outclb the small aircraft Y. Widebody transport X climbed slower than anticipated. Traffic was exchanged. The widebody transport X took evasive action.

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Original NASA ASRS Text

Title: ACR WDB TOOK EVASIVE ACTION TO MISS SMA ACFT DURING INITIAL CLB.

Narrative: SMA Y DEPARTED, CLBED TO 2000 FT MSL ON HDG 320 DEGS. THE WDB X WAS IN LINE AT DIFFERENT RWY. AFTER DEP, THE WDB X WAS TURNED TO HDG 360 DEGS AFTER DEPARTING, ANTICIPATING THEY WOULD OUTCLB THE SMA Y. WDB X CLBED SLOWER THAN ANTICIPATED. TFC WAS EXCHANGED. THE WDB X TOOK EVASIVE ACTION.

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.