Narrative:

MSL runway 18L. Assigned cleared on course to MSL (anb VOR), approximately 300 degree heading. Then assigned present heading, and subsequently cleared to FL230, passing through FL220, cleared direct sqs. I did not hear the FL220 restr and entered direct sqs and implemented a turn to the left. Center immediately called to verify heading, and directed a turn back to 300 degrees. In the future, I will pay closer attention to radio calls.

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Original NASA ASRS Text

Title: AN F100 FLC STARTS AN EARLY TURN DIRECT TO MSL WHEN GIVEN AN ALT RESTR FOR THAT TURN AFTER DEP MSL, AL.

Narrative: MSL RWY 18L. ASSIGNED CLRED ON COURSE TO MSL (ANB VOR), APPROX 300 DEG HDG. THEN ASSIGNED PRESENT HDG, AND SUBSEQUENTLY CLRED TO FL230, PASSING THROUGH FL220, CLRED DIRECT SQS. I DID NOT HEAR THE FL220 RESTR AND ENTERED DIRECT SQS AND IMPLEMENTED A TURN TO THE L. CTR IMMEDIATELY CALLED TO VERIFY HDG, AND DIRECTED A TURN BACK TO 300 DEGS. IN THE FUTURE, I WILL PAY CLOSER ATTN TO RADIO CALLS.

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.