Narrative:

On departure from lax to ord, tower told us to maintain 3000 ft. At 1500 ft tower told us to maintain 2000 ft. Tower said we would have passing traffic at 3000 ft. We saw the traffic pass over us on TCASII. We started an accidental climb out of 2000 ft. Lax departure told us then to climb to 3000 ft maintain 250 KTS.

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Original NASA ASRS Text

Title: PLTDEV. FLC DEPARTED AND OVERSHOOTS INITIAL ALT ASSIGNMENT. AFTER DEP ALT ASSIGNMENT WAS CHANGED FROM 3000 FT TO 2000 FT. TFC WAS ISSUED BY ATC AND OBSERVED ON TCASII.

Narrative: ON DEP FROM LAX TO ORD, TWR TOLD US TO MAINTAIN 3000 FT. AT 1500 FT TWR TOLD US TO MAINTAIN 2000 FT. TWR SAID WE WOULD HAVE PASSING TFC AT 3000 FT. WE SAW THE TFC PASS OVER US ON TCASII. WE STARTED AN ACCIDENTAL CLB OUT OF 2000 FT. LAX DEP TOLD US THEN TO CLB TO 3000 FT MAINTAIN 250 KTS.

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.