MD80 crew had altitude overshoot in ZTL class a airspace.

Attributes
ACN	492740
Time
Date	200011
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : vxv.vortac
State Reference	TN
Altitude	msl bound lower : 21600 msl bound upper : 22000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	other other other vortac
Flight Phase	cruise : enroute altitude change
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	492740
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	492739
Events
Anomaly	altitude deviation : overshoot non adherence : far non adherence : published procedure non adherence : company policies
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued alert flight crew : returned to assigned altitude
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude bust. FL240, requested FL220. Received FL220. Set and checked FL220. Began descent in IAS mode, switched to vertical speed at FL225. Altitude arm kicked off. Recovered at FL216 and climbed back to FL220. No conflict. Controller advised we were 400 ft low.

Original NASA ASRS Text

Title: MD80 CREW HAD ALT OVERSHOOT IN ZTL CLASS A AIRSPACE.

Narrative: ALT BUST. FL240, REQUESTED FL220. RECEIVED FL220. SET AND CHKED FL220. BEGAN DSCNT IN IAS MODE, SWITCHED TO VERT SPD AT FL225. ALT ARM KICKED OFF. RECOVERED AT FL216 AND CLBED BACK TO FL220. NO CONFLICT. CTLR ADVISED WE WERE 400 FT LOW.

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.