Narrative:

Given clearance to cross fak at FL290. We were level at FL350. I found myself dozing off and when I opened my eyes I saw we never started our descent. Right then; ATC said to disregard clearance and just descend to FL290. This was last day of a 4-DAY trip. Overnight was only scheduled for 9 hours 56 mins. Got to hotel around XA30 and had to catch van following morning at XI30. Factors: not enough rest; fatigue; etc.

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Original NASA ASRS Text

Title: FLT CREW DOES NOT INITIATE DESCENT TO COMPLY WITH CROSSING RESTRICTION; CITING FATIGUE AS THE CAUSE.

Narrative: GIVEN CLRNC TO CROSS FAK AT FL290. WE WERE LEVEL AT FL350. I FOUND MYSELF DOZING OFF AND WHEN I OPENED MY EYES I SAW WE NEVER STARTED OUR DSCNT. RIGHT THEN; ATC SAID TO DISREGARD CLRNC AND JUST DSND TO FL290. THIS WAS LAST DAY OF A 4-DAY TRIP. OVERNIGHT WAS ONLY SCHEDULED FOR 9 HRS 56 MINS. GOT TO HOTEL AROUND XA30 AND HAD TO CATCH VAN FOLLOWING MORNING AT XI30. FACTORS: NOT ENOUGH REST; FATIGUE; ETC.

Data retrieved from NASA's ASRS site as of May 2009 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.