B727 crew had altitude overshoot.

Attributes
ACN	444950
Time
Date	199908
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : atl.vortac
State Reference	GA
Altitude	msl bound lower : 11600 msl bound upper : 12000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : atl.tracon
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	444950
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 : published procedure non adherence : company policies non adherence : far
Independent Detector	other flight crewa other flight crewb other other : 3
Resolutory Action	flight crew : returned to assigned altitude none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Momentary altitude deviation. Approaching assigned altitude of 12000 ft during descent was distracted and allowed aircraft to descend to 11600 ft for about 10 seconds. Promptly climbed to 12000 ft. No comment by ATC.

Original NASA ASRS Text

Title: B727 CREW HAD ALT OVERSHOOT.

Narrative: MOMENTARY ALTDEV. APCHING ASSIGNED ALT OF 12000 FT DURING DSCNT WAS DISTRACTED AND ALLOWED ACFT TO DSND TO 11600 FT FOR ABOUT 10 SECONDS. PROMPTLY CLBED TO 12000 FT. NO COMMENT BY ATC.

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.