Narrative:

We were cleared direct ukw and the ukw arrival to dfw. There's a note to expect to cross the first fix past ukn at 11000 ft and 250 KIAS. As the PF, I entered the expected crossing restr into the FMS with a 5 mi pad for slowing down to 250 KIAS. ATC began issuing step-down dscnts from FL370 and to maintain 300 KTS. As we reached, I think, the third step-down at 15000 ft, ATC still hadn't issued the crossing and we flew through the FMS pseudo-GS for the crossing. Given our altitude and distance from the fix, I wondered if ATC was going to give the expected crossing. Shortly thereafter, we were given the crossing and to comply with speeds on the STAR. As I recall, I reached 11000 ft a couple of mi short of the fix, but although I was at idle thrust, I crossed the fix about 280 KIAS vice 250 KTS. Just before reaching 11000 ft, ATC issued a descent to 7000 ft. I continued down while trying to slow to 250 KTS. I noticed I was above 250 KTS passing through 10000 ft. I immediately stopped the descent at about 9700 ft MSL and slowed to 245 KIAS before continuing to 7000 ft. This was clearly a lack of situational awareness. In addition, due to a lack of self-discipline, I only got about 5 hours of sleep the night before. I think the self-induced fatigue was a causal factor. Recognizing I was tired, I should have requested an amended clearance from ATC. I am unaware of any traffic conflict.

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Original NASA ASRS Text

Title: E140 CREW ACCEPTED AN ALT XING RESTR THE ACFT WAS UNABLE TO COMPLY WITH IN D10 CLASS E AIRSPACE.

Narrative: WE WERE CLRED DIRECT UKW AND THE UKW ARR TO DFW. THERE'S A NOTE TO EXPECT TO CROSS THE FIRST FIX PAST UKN AT 11000 FT AND 250 KIAS. AS THE PF, I ENTERED THE EXPECTED XING RESTR INTO THE FMS WITH A 5 MI PAD FOR SLOWING DOWN TO 250 KIAS. ATC BEGAN ISSUING STEP-DOWN DSCNTS FROM FL370 AND TO MAINTAIN 300 KTS. AS WE REACHED, I THINK, THE THIRD STEP-DOWN AT 15000 FT, ATC STILL HADN'T ISSUED THE XING AND WE FLEW THROUGH THE FMS PSEUDO-GS FOR THE XING. GIVEN OUR ALT AND DISTANCE FROM THE FIX, I WONDERED IF ATC WAS GOING TO GIVE THE EXPECTED XING. SHORTLY THEREAFTER, WE WERE GIVEN THE XING AND TO COMPLY WITH SPDS ON THE STAR. AS I RECALL, I REACHED 11000 FT A COUPLE OF MI SHORT OF THE FIX, BUT ALTHOUGH I WAS AT IDLE THRUST, I CROSSED THE FIX ABOUT 280 KIAS VICE 250 KTS. JUST BEFORE REACHING 11000 FT, ATC ISSUED A DSCNT TO 7000 FT. I CONTINUED DOWN WHILE TRYING TO SLOW TO 250 KTS. I NOTICED I WAS ABOVE 250 KTS PASSING THROUGH 10000 FT. I IMMEDIATELY STOPPED THE DSCNT AT ABOUT 9700 FT MSL AND SLOWED TO 245 KIAS BEFORE CONTINUING TO 7000 FT. THIS WAS CLRLY A LACK OF SITUATIONAL AWARENESS. IN ADDITION, DUE TO A LACK OF SELF-DISCIPLINE, I ONLY GOT ABOUT 5 HRS OF SLEEP THE NIGHT BEFORE. I THINK THE SELF-INDUCED FATIGUE WAS A CAUSAL FACTOR. RECOGNIZING I WAS TIRED, I SHOULD HAVE REQUESTED AN AMENDED CLRNC FROM ATC. I AM UNAWARE OF ANY TFC CONFLICT.

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.