B757-200 crew had altitude overshoot in ZDV class a airspace.

Attributes
ACN	496860
Time
Date	200012
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : hbu.vortac
State Reference	CO
Altitude	msl bound lower : 18000 msl bound upper : 18300
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : vacating altitude climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	496860
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure non adherence : company policies non adherence : clearance other anomaly other
Independent Detector	atc equipment other atc equipment : radar other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude bust. During climb, assigned altitude FL180. Climbed through altitude to about FL183 and descended back to FL180.

Original NASA ASRS Text

Title: B757-200 CREW HAD ALT OVERSHOOT IN ZDV CLASS A AIRSPACE.

Narrative: ALT BUST. DURING CLB, ASSIGNED ALT FL180. CLBED THROUGH ALT TO ABOUT FL183 AND DSNDED BACK TO FL180.

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.