An A300 crew overshot an intermediate altitude during descent.

Attributes
ACN	497940
Time
Date	200101
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : ind.airport
State Reference	IN
Altitude	msl bound lower : 23500 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zid.artcc tower : tus.tower
Operator	common carrier : air carrier
Make Model Name	A310
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 : atp
Experience	flight time last 90 days : 100 flight time total : 10000 flight time type : 1000
ASRS Report	497940
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On descent to FL240, autoplt failed to capture altitude at FL240. Autoplt disconnected and corrective action taken. Altitude went 400-500 ft low. Maintenance note in logbook.

Original NASA ASRS Text

Title: AN A300 CREW OVERSHOT AN INTERMEDIATE ALT DURING DSCNT.

Narrative: ON DSCNT TO FL240, AUTOPLT FAILED TO CAPTURE ALT AT FL240. AUTOPLT DISCONNECTED AND CORRECTIVE ACTION TAKEN. ALT WENT 400-500 FT LOW. MAINT NOTE IN LOGBOOK.

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.