Narrative:

I was assigned to descend about 6000 ft and cross a point about 25-30 NM ahead at FL270 (I was at FL330). I had some problem (operator problem) programming the FMC, and while I was wasting time messing around with FMC, we overflew our point at higher than assigned altitude. I cannot believe I did that!! I am experienced in FMS and I usually 'fly the airplane first' and make sure I'm close on crossing assignments before I go heads down and start programming. I usually fly international on the B767, but only fly about 1 trip per month. I was flying the first leg of a domestic trip. I had not flown domestic nor the B757 for many months and I was slightly uncomfortable (and slightly behind the aircraft all the way to the destination gate!). I am disappointed with myself because I have already made that mistake once in my career!!

Google
 

Original NASA ASRS Text

Title: B757 MAINTAINING FL330, CLRED TO DSND FL270 CROSS A POINT 30 MI FL270. PROGRAMMING FMC TO NOTE XING RESTR NOT MET. WAS AT FL300 AT 30 MI. HAD NOT FLOWN DOMESTIC OR THE B757 FOR MANY MONTHS.

Narrative: I WAS ASSIGNED TO DSND ABOUT 6000 FT AND CROSS A POINT ABOUT 25-30 NM AHEAD AT FL270 (I WAS AT FL330). I HAD SOME PROB (OPERATOR PROB) PROGRAMMING THE FMC, AND WHILE I WAS WASTING TIME MESSING AROUND WITH FMC, WE OVERFLEW OUR POINT AT HIGHER THAN ASSIGNED ALT. I CANNOT BELIEVE I DID THAT!! I AM EXPERIENCED IN FMS AND I USUALLY 'FLY THE AIRPLANE FIRST' AND MAKE SURE I'M CLOSE ON XING ASSIGNMENTS BEFORE I GO HEADS DOWN AND START PROGRAMMING. I USUALLY FLY INTL ON THE B767, BUT ONLY FLY ABOUT 1 TRIP PER MONTH. I WAS FLYING THE FIRST LEG OF A DOMESTIC TRIP. I HAD NOT FLOWN DOMESTIC NOR THE B757 FOR MANY MONTHS AND I WAS SLIGHTLY UNCOMFORTABLE (AND SLIGHTLY BEHIND THE ACFT ALL THE WAY TO THE DEST GATE!). I AM DISAPPOINTED WITH MYSELF BECAUSE I HAVE ALREADY MADE THAT MISTAKE ONCE IN MY CAREER!!

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.