Narrative:

Approximately 110 DME from mrb level at FL330 we were cleared to cross 65 west of mrb at FL250. I acknowledged clearance with ATC, set 250 in altitude warning indicator, pointed to it and repeated it to first officer (PF), then wrote it down. First officer began descent and I reported out of FL330. Shortly after this I left frequency to obtain ATIS, call company and give PA. While attempting company contact I noticed DME at 68 from mrb and our altitude at FL283. I immediately asked first officer if our restriction had been changed or cancelled. He said no, so I asked him about our 65 DME crossing. He responded, 'oh I thought maybe it was 55 DME.' I instructed him to set up maximum descent rate. We crossed 65 DME at FL259 and leveled at 61 DME. The controller never commented, but as were were leveling off he cleared us in what I perceived as a somewhat hesitant voice to cross mumsy at 15000 ft. Flight continued normally. I spoke with my first officer and suggested if he wasn't sure of restriction he should have asked ATC, or me. In retrospect I should have observed my first officer more closely when he was flying, as I had worked with him on a prior occasion during which he demonstrated very poor cockpit and checklist discipline. I attribute this partially to his being dual qualified, and partially to cockpit complacency on his part.

Related reports:

Google
 

Original NASA ASRS Text

Title: ACR FLC FAILED TO MEET AN ALT XING RESTRICTION. ALT DEV ALT UNDERSHOT. RPTR ERROR ADMITTED.

Narrative: APPROX 110 DME FROM MRB LEVEL AT FL330 WE WERE CLRED TO CROSS 65 W OF MRB AT FL250. I ACKNOWLEDGED CLRNC WITH ATC, SET 250 IN ALT WARNING INDICATOR, POINTED TO IT AND REPEATED IT TO FO (PF), THEN WROTE IT DOWN. FO BEGAN DSCNT AND I RPTED OUT OF FL330. SHORTLY AFTER THIS I LEFT FREQ TO OBTAIN ATIS, CALL COMPANY AND GIVE PA. WHILE ATTEMPTING COMPANY CONTACT I NOTICED DME AT 68 FROM MRB AND OUR ALT AT FL283. I IMMEDIATELY ASKED FO IF OUR RESTRICTION HAD BEEN CHANGED OR CANCELLED. HE SAID NO, SO I ASKED HIM ABOUT OUR 65 DME XING. HE RESPONDED, 'OH I THOUGHT MAYBE IT WAS 55 DME.' I INSTRUCTED HIM TO SET UP MAX DSCNT RATE. WE CROSSED 65 DME AT FL259 AND LEVELED AT 61 DME. THE CTLR NEVER COMMENTED, BUT AS WERE WERE LEVELING OFF HE CLRED US IN WHAT I PERCEIVED AS A SOMEWHAT HESITANT VOICE TO CROSS MUMSY AT 15000 FT. FLT CONTINUED NORMALLY. I SPOKE WITH MY FO AND SUGGESTED IF HE WASN'T SURE OF RESTRICTION HE SHOULD HAVE ASKED ATC, OR ME. IN RETROSPECT I SHOULD HAVE OBSERVED MY FO MORE CLOSELY WHEN HE WAS FLYING, AS I HAD WORKED WITH HIM ON A PRIOR OCCASION DURING WHICH HE DEMONSTRATED VERY POOR COCKPIT AND CHKLIST DISCIPLINE. I ATTRIBUTE THIS PARTIALLY TO HIS BEING DUAL QUALIFIED, AND PARTIALLY TO COCKPIT COMPLACENCY ON HIS PART.

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.