B757-200 crew had altitude overshoot in sdf class east airspace.

Attributes
ACN	499060
Time
Date	200101
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	intersection : darby
State Reference	KY
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sdf.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude
Route In Use	arrival star : darby
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 7500 flight time type : 1500
ASRS Report	499060
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : company policies non adherence : clearance non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was the PNF as we were descending into sdf on the darby arrival. ZID had cleared us to cross darby intersection at 11000 ft and 250 KTS. ZID handed us off to lexington approach control, but first gave us a heading to reintercept the darby arrival (for spacing). After checking in with lexington approach, the controller cleared us to cross darby at 11000 ft then descend to 10000 ft. As I was reprogramming the FMC, the first officer descended directly to 10000 ft (approximately 4 NM before reaching darby). This could have been avoided if I had monitored the first officer more closely as I was reprogramming the FMC. Also, the vector off the STAR the back onto it, was distracting. This caused me to have my head down instead of up monitoring the PF and other traffic.

Original NASA ASRS Text

Title: B757-200 CREW HAD ALT OVERSHOOT IN SDF CLASS E AIRSPACE.

Narrative: I WAS THE PNF AS WE WERE DSNDING INTO SDF ON THE DARBY ARR. ZID HAD CLRED US TO CROSS DARBY INTXN AT 11000 FT AND 250 KTS. ZID HANDED US OFF TO LEXINGTON APCH CTL, BUT FIRST GAVE US A HDG TO REINTERCEPT THE DARBY ARR (FOR SPACING). AFTER CHKING IN WITH LEXINGTON APCH, THE CTLR CLRED US TO CROSS DARBY AT 11000 FT THEN DSND TO 10000 FT. AS I WAS REPROGRAMMING THE FMC, THE FO DSNDED DIRECTLY TO 10000 FT (APPROX 4 NM BEFORE REACHING DARBY). THIS COULD HAVE BEEN AVOIDED IF I HAD MONITORED THE FO MORE CLOSELY AS I WAS REPROGRAMMING THE FMC. ALSO, THE VECTOR OFF THE STAR THE BACK ONTO IT, WAS DISTRACTING. THIS CAUSED ME TO HAVE MY HEAD DOWN INSTEAD OF UP MONITORING THE PF AND OTHER TFC.

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.