A 320 flight crew has aircraft airframe overspd and go around during approach to kord.

Attributes
ACN	570274
Time
Date	200301
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	msl bound lower : 4000 msl bound upper : 4500
Environment
Flight Conditions	IMC
Weather Elements	Snow
Aircraft 1
Controlling Facilities	tower : ord.tower tower : hou.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach landing : go around
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time type : 1248
ASRS Report	570274
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure non adherence : far other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : overrode automation flight crew : regained aircraft control flight crew : executed go around
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On approach into ord runway 4R, autoplt engaged, flaps 3 degrees gear down. At 170 KTS, assigned, engaged manage speed. Airspeed increased towards overspd regime. We disconnected autoplt and increased pitch to prevent an overspd. Aircraft continued to increase speed into overspd regime, and we got overspd warning. We disconnected autoplt and autothrottle to regain control. Aircraft did not respond, so we executed a missed approach as we were too high. Advised tower we had an autothrottle problem and asked for higher as aircraft would not slow down. We were assigned 4000 ft, and we were past that when assigned. We reached 4500 ft before we could get airspeed somewhat under control. Radar vectors were numerous. We missed a heading assignment. On approach to runway 9R with autoplt and autothrottle off, we engaged manage speed again, and speed increased again, so we landed all autoflt off. We had a flap overspd and informed maintenance and wrote up irregularity.

Original NASA ASRS Text

Title: A 320 FLC HAS ACFT AIRFRAME OVERSPD AND GAR DURING APCH TO KORD.

Narrative: ON APCH INTO ORD RWY 4R, AUTOPLT ENGAGED, FLAPS 3 DEGREES GEAR DOWN. AT 170 KTS, ASSIGNED, ENGAGED MANAGE SPD. AIRSPD INCREASED TOWARDS OVERSPD REGIME. WE DISCONNECTED AUTOPLT AND INCREASED PITCH TO PREVENT AN OVERSPD. ACFT CONTINUED TO INCREASE SPD INTO OVERSPD REGIME, AND WE GOT OVERSPD WARNING. WE DISCONNECTED AUTOPLT AND AUTOTHROTTLE TO REGAIN CTL. ACFT DID NOT RESPOND, SO WE EXECUTED A MISSED APCH AS WE WERE TOO HIGH. ADVISED TWR WE HAD AN AUTOTHROTTLE PROB AND ASKED FOR HIGHER AS ACFT WOULD NOT SLOW DOWN. WE WERE ASSIGNED 4000 FT, AND WE WERE PAST THAT WHEN ASSIGNED. WE REACHED 4500 FT BEFORE WE COULD GET AIRSPD SOMEWHAT UNDER CTL. RADAR VECTORS WERE NUMEROUS. WE MISSED A HDG ASSIGNMENT. ON APCH TO RWY 9R WITH AUTOPLT AND AUTOTHROTTLE OFF, WE ENGAGED MANAGE SPD AGAIN, AND SPD INCREASED AGAIN, SO WE LANDED ALL AUTOFLT OFF. WE HAD A FLAP OVERSPD AND INFORMED MAINT AND WROTE UP IRREGULARITY.

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.