Narrative:

I was extremely tired during flight and subsequently dozed off during cruise. It was the captain's leg flying the airplane, which would customarily mean that I would talk on the radios. However, I would momentarily be roused only during those times that the captain would answer a radio call. The last call I remember was for descent to 17000 ft. Upon waking I noticed that we were 15 DME from destination at 17000 ft. We called center and were handed off directly to approach. I do not know if we missed a radio call or if center 'forgot' about us. In any case, we were not where we were supposed to be. Lack of adequate rest was the prime cause of this problem. I should have called in sick.

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Original NASA ASRS Text

Title: REGIONAL CARRIER ACFT DID NOT MAINTAIN INTENDED FLT PATH. FO FELL ASLEEP, AND CAPT FAILED TO REQUEST DSCNT.

Narrative: I WAS EXTREMELY TIRED DURING FLT AND SUBSEQUENTLY DOZED OFF DURING CRUISE. IT WAS THE CAPT'S LEG FLYING THE AIRPLANE, WHICH WOULD CUSTOMARILY MEAN THAT I WOULD TALK ON THE RADIOS. HOWEVER, I WOULD MOMENTARILY BE ROUSED ONLY DURING THOSE TIMES THAT THE CAPT WOULD ANSWER A RADIO CALL. THE LAST CALL I REMEMBER WAS FOR DSCNT TO 17000 FT. UPON WAKING I NOTICED THAT WE WERE 15 DME FROM DEST AT 17000 FT. WE CALLED CTR AND WERE HANDED OFF DIRECTLY TO APCH. I DO NOT KNOW IF WE MISSED A RADIO CALL OR IF CTR 'FORGOT' ABOUT US. IN ANY CASE, WE WERE NOT WHERE WE WERE SUPPOSED TO BE. LACK OF ADEQUATE REST WAS THE PRIME CAUSE OF THIS PROB. I SHOULD HAVE CALLED IN SICK.

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.