Narrative:

Aircraft was being vectored for visual approach to runway 22L at ewr. Clearance was given by new york approach to descend to 5000 ft from 6000 ft. Aircraft was descended through 'cleared to' altitude of 5000 ft to 4500 ft. Approach then cleared aircraft to 4000 ft. This was the third leg of the duty period. The first leg was an 'all nighter' den to ewr. From ewr we flew to dca and were on our way back to ewr. We had been up all night and were on our third leg. I feel this was the primary factor involved. Crew fatigue often leads to errors.

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Original NASA ASRS Text

Title: FLC OF LGT ON DSCNT OVERSHOT ASSIGNED ALT. CTLR ISSUED NEW CLRNC.

Narrative: ACFT WAS BEING VECTORED FOR VISUAL APCH TO RWY 22L AT EWR. CLRNC WAS GIVEN BY NEW YORK APCH TO DSND TO 5000 FT FROM 6000 FT. ACFT WAS DSNDED THROUGH 'CLRED TO' ALT OF 5000 FT TO 4500 FT. APCH THEN CLRED ACFT TO 4000 FT. THIS WAS THE THIRD LEG OF THE DUTY PERIOD. THE FIRST LEG WAS AN 'ALL NIGHTER' DEN TO EWR. FROM EWR WE FLEW TO DCA AND WERE ON OUR WAY BACK TO EWR. WE HAD BEEN UP ALL NIGHT AND WERE ON OUR THIRD LEG. I FEEL THIS WAS THE PRIMARY FACTOR INVOLVED. CREW FATIGUE OFTEN LEADS TO ERRORS.

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.