Altitude overshoot.

Attributes
ACN	478180
Time
Date	200007
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : jen.vortac
State Reference	TX
Altitude	msl bound lower : 16600 msl bound upper : 17000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	478180
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After changing from IAS descent to vertical speed descent the autoplt failed to capture the leveloff altitude. I disconnected autoplt and corrected to 17000 ft. 400 ft deviation. ATC never said a word about it.

Original NASA ASRS Text

Title: ALT OVERSHOOT.

Narrative: AFTER CHANGING FROM IAS DSCNT TO VERT SPD DSCNT THE AUTOPLT FAILED TO CAPTURE THE LEVELOFF ALT. I DISCONNECTED AUTOPLT AND CORRECTED TO 17000 FT. 400 FT DEV. ATC NEVER SAID A WORD ABOUT IT.

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.