CRJ700 flight crew overshoots crossing restr by 1000 ft.

Attributes
ACN	700581
Time
Date	200606
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zau.artcc
State Reference	IL
Altitude	msl bound lower : 9000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet 700 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 210 flight time total : 7000 flight time type : 2000
ASRS Report	700581
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : published procedure non adherence : clearance
Independent Detector	other controllerb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I was off the frequency; in the back briefing the passenger for the arrival and talking to operations for our gate. The first officer was flying and had been cleared to cross drivr at 11000 ft and awsum at 10000 ft. I returned from being away to find the first officer was at 9000 ft at awsum and beginning to climb back to 10000 ft. The controller called and asked our assigned altitude and I verified 10000 ft and that we were climbing back up to that altitude. Upon asking the first officer what happened; he replied that the autoplt did not stop at 10000 ft. I asked him why he allowed the jet to descend beyond the assigned altitude so far and he replied that he did not know.

Original NASA ASRS Text

Title: CRJ700 FLT CREW OVERSHOOTS XING RESTR BY 1000 FT.

Narrative: I WAS OFF THE FREQ; IN THE BACK BRIEFING THE PAX FOR THE ARR AND TALKING TO OPS FOR OUR GATE. THE FO WAS FLYING AND HAD BEEN CLRED TO CROSS DRIVR AT 11000 FT AND AWSUM AT 10000 FT. I RETURNED FROM BEING AWAY TO FIND THE FO WAS AT 9000 FT AT AWSUM AND BEGINNING TO CLB BACK TO 10000 FT. THE CTLR CALLED AND ASKED OUR ASSIGNED ALT AND I VERIFIED 10000 FT AND THAT WE WERE CLBING BACK UP TO THAT ALT. UPON ASKING THE FO WHAT HAPPENED; HE REPLIED THAT THE AUTOPLT DID NOT STOP AT 10000 FT. I ASKED HIM WHY HE ALLOWED THE JET TO DSND BEYOND THE ASSIGNED ALT SO FAR AND HE REPLIED THAT HE DID NOT KNOW.

Data retrieved from NASA's ASRS site as of January 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.