Narrative:

The flight was given a clearance by the ground controller at gjt, co. It was taken by the first officer who missed the readback on 3 attempts. The result was a mixup in communications. He apparently messed up the readback enough times that he confused the controller, me and himself. The clearance was: gjt 1 departure, bacca transition, cross glare intersection at 11000 ft, expect FL230, contact departure reaching glare -J130 to denver. The first officer had such a time getting the clearance that it focused all of the attention on the routing and while we read back 'after glare, climb to FL230 and contact center on 125.35,' it was not corrected. We crossed glare intersection at 11000 ft, checked on with center and told him we were climbing to FL230. He rogered this without comment and we did not hear of any traffic conflicts on the frequency. Subsequently, we heard from the tower supervisor that we had not followed the clearance and may have caused a conflict, but this was not verified as far as I know. Contributing to the mixup was the inexperience of the first officer and fatigue for the both of us. We flew 7.9 hours that day, 7 legs, that had numerous delays and problems. The problem occurred on the last leg.

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Original NASA ASRS Text

Title: THE CLRNC WAS TO EXPECT FURTHER CLB TO FL230 AFTER GLARE, BUT THE CREW READ BACK TO CLB TO FL230 AFTER GLARE AND THE CREW DID WHAT THEY READ BACK.

Narrative: THE FLT WAS GIVEN A CLRNC BY THE GND CTLR AT GJT, CO. IT WAS TAKEN BY THE FO WHO MISSED THE READBACK ON 3 ATTEMPTS. THE RESULT WAS A MIXUP IN COMS. HE APPARENTLY MESSED UP THE READBACK ENOUGH TIMES THAT HE CONFUSED THE CTLR, ME AND HIMSELF. THE CLRNC WAS: GJT 1 DEP, BACCA TRANSITION, CROSS GLARE INTXN AT 11000 FT, EXPECT FL230, CONTACT DEP REACHING GLARE -J130 TO DENVER. THE FO HAD SUCH A TIME GETTING THE CLRNC THAT IT FOCUSED ALL OF THE ATTN ON THE ROUTING AND WHILE WE READ BACK 'AFTER GLARE, CLB TO FL230 AND CONTACT CTR ON 125.35,' IT WAS NOT CORRECTED. WE CROSSED GLARE INTXN AT 11000 FT, CHKED ON WITH CTR AND TOLD HIM WE WERE CLBING TO FL230. HE ROGERED THIS WITHOUT COMMENT AND WE DID NOT HEAR OF ANY TFC CONFLICTS ON THE FREQ. SUBSEQUENTLY, WE HEARD FROM THE TWR SUPVR THAT WE HAD NOT FOLLOWED THE CLRNC AND MAY HAVE CAUSED A CONFLICT, BUT THIS WAS NOT VERIFIED AS FAR AS I KNOW. CONTRIBUTING TO THE MIXUP WAS THE INEXPERIENCE OF THE FO AND FATIGUE FOR THE BOTH OF US. WE FLEW 7.9 HRS THAT DAY, 7 LEGS, THAT HAD NUMEROUS DELAYS AND PROBS. THE PROB OCCURRED ON THE LAST LEG.

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.