An air carrier B727 flight crew briefly climbed above their assigned altitude.

Attributes
ACN	342980
Time
Date	199608
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : fmn
State Reference	NM
Altitude	msl bound lower : 29000 msl bound upper : 29600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
Experience	flight time last 90 days : 250 flight time total : 9000 flight time type : 1500
ASRS Report	342980
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Autoplt failed to capture altitude plus 600 ft. FL296 vice FL290 -- corrected in about 3 seconds.

Original NASA ASRS Text

Title: AN ACR B727 FLC BRIEFLY CLBED ABOVE THEIR ASSIGNED ALT.

Narrative: AUTOPLT FAILED TO CAPTURE ALT PLUS 600 FT. FL296 VICE FL290 -- CORRECTED IN ABOUT 3 SECONDS.

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.