An air carrier MD80 crew overshot its descent altitude. Error admitted.

Attributes
ACN	340030
Time
Date	199606
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cos
State Reference	CO
Altitude	msl bound lower : 26700 msl bound upper : 27000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	340030
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	340025
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Descending to 27000 ft aircraft did not capture altitude. Deviated approximately 300 ft low, returned to 27000 ft. No comments made by ATC. I was not the PF at the time. Heavy workload.

Original NASA ASRS Text

Title: AN ACR MD80 CREW OVERSHOT ITS DSCNT ALT. ERROR ADMITTED.

Narrative: DSNDING TO 27000 FT ACFT DID NOT CAPTURE ALT. DEVIATED APPROX 300 FT LOW, RETURNED TO 27000 FT. NO COMMENTS MADE BY ATC. I WAS NOT THE PF AT THE TIME. HVY WORKLOAD.

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.