Narrative:

We were level at cruise at FL290. We were then cleared direct to pxt and the korry 2 arrival. Assuming we were cleared to descend via the korry 2, we started a slow descent. At FL285 the controller told us to go back up to FL290. We misunderstood the clearance initially. After a little discussion, we determined that we did not actually hear the controller say, 'descend via the korry 2.' in the future upon doing the korry STAR, we will listen for the ATC controller to say 'descend via the korry 2 arrival.' the altitude box that states 'descend via the korry 2 arrival' in the bottom r-hand side of the chart, should be written in bold letters.

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Original NASA ASRS Text

Title: CL65 INSTRUCTOR PLT, GIVING CAPT IOE, AND CAPT IN TRAINING, DID NOT DIFFERENTIATE BTWN BEING CLRED FOR THE 'KORRY 2 STAR,' AND 'DSND VIA THE KORRY 2 STAR.' THE CREW HAD AN ALTDEV AS A RESULT, WHEN THEY THOUGHT THEY WERE CLRED FOR LOWER.

Narrative: WE WERE LEVEL AT CRUISE AT FL290. WE WERE THEN CLRED DIRECT TO PXT AND THE KORRY 2 ARR. ASSUMING WE WERE CLRED TO DSND VIA THE KORRY 2, WE STARTED A SLOW DSCNT. AT FL285 THE CTLR TOLD US TO GO BACK UP TO FL290. WE MISUNDERSTOOD THE CLRNC INITIALLY. AFTER A LITTLE DISCUSSION, WE DETERMINED THAT WE DID NOT ACTUALLY HEAR THE CTLR SAY, 'DSND VIA THE KORRY 2.' IN THE FUTURE UPON DOING THE KORRY STAR, WE WILL LISTEN FOR THE ATC CTLR TO SAY 'DSND VIA THE KORRY 2 ARR.' THE ALT BOX THAT STATES 'DSND VIA THE KORRY 2 ARR' IN THE BOTTOM R-HAND SIDE OF THE CHART, SHOULD BE WRITTEN IN BOLD LETTERS.

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.