ACR LGT FRTR DSNDED THROUGH ITS ASSIGNED ALT.

Narrative

I WAS CALLED OUT AT APPROX XE00 FOR A 'SPECIAL.' RTE WAS MEM-PVD-EWR-MEM. I WENT TO BED AROUND XV30 THAT EVENING. I DID NOT THINK I WAS THAT TIRED DRIVING OUT TO THE ARPT. HOWEVER; ONCE AIRBORNE; ALL 3 OF US NOTED THAT WE WERE TIRED AND STARTING TO MAKE SMALL ERRORS (CALL SIGNS; FREQ CHANGES; ETC). THE CAPT HAD BEEN IN THE L SEAT FOR APPROX 1 1/2 YRS. I WAS 3 WKS OUT OF IOE FOR THE R SEAT; THE SO HAD BEEN IN HIS SEAT APPROX 4 1/2 YRS. WE WERE CLRED DOWN TO 10000 FT BY APCH. THE ALT ALERTER WAS SET PROPERLY AND WE STARTED DOWN. ALL 3 OF US COMMENTED ON OUR FATIGUE. I WAS ALSO EXPERIENCING MILD STOMACH PROBS. WE HEARD THE ALERTER GO OFF 300 FT (APPROX) ABOVE OUR LEVELOFF ALT. I MISSED THE '1000 FT ABOVE' (IE; 11000 FT FOR 10000 FT) CALL AND NOTED; ALONG WITH THE SO; 500 FT ABOVE. WE PASSED 10000 FT STILL DSNDING. THE CAPT AND REST OF THE CREW CAUGHT 300 FT BELOW JUST AS THE ALT ALERT WENT OFF. WE STARTED BACK UP AT 9600 FT AND ALMOST IMMEDIATELY WE WERE TOLD BY APCH TO 'CHK ALT.' WE LEVELED AT 10000 FT AT 250 KTS -- NEVER WENT FASTER THAN 250 KIAS BELOW 10000 FT. THE WHOLE FLT WAS A SERIES OF ERRORS. WE ARRIVED BACK IN MEM AT AROUND XN15. THIS TRIP WAS ONE OF THE WORST I HAVE EVER HAD BECAUSE OF FATIGUE (AND IN MY CASE; STOMACH PROBS). FATIGUE; LIKE HYPOXIA; CAN BE INSIDIOUS IN ITS ONSET. WE WERE FORTUNATE NOTHING REALLY SERIOUS CAME UP. SUPPLEMENTAL INFO FROM ACN 291998: SHORT OF NOT ACCEPTING THE TRIP; THERE ISN'T MUCH WE COULD HAVE DONE. THIS WAS 'ONE OF THOSE DAYS.' ALL OF US APPEARED TO HAVE BEEN RESTED BEFORE LAUNCH; BUT THE SO KEPT NODDING OFF AND THE FO COMMENTED ABOUT BEING TIRED.