An A320 captain reported that moderate turbulence and windshear caused a flap overspd.

Attributes
ACN	514010
Time
Date	200106
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : msy.airport
State Reference	LA
Altitude	msl single value : 3000
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Flight Phase	descent : approach landing : go around landing : missed approach ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time type : 2330
ASRS Report	514010
Events
Anomaly	inflight encounter : turbulence inflight encounter other non adherence : published procedure
Resolutory Action	flight crew : took evasive action
Consequence	other
Supplementary
Problem Areas	Weather
Primary Problem	Weather

Narrative:

On arrival, runway 18 at msy, encountered moderate turbulence with significant updrafts/downdrafts, caused the aircraft to exceed flap limitations by approximately 10 KTS on 2 occasions, which was followed by a windshear/missed approach commencing at approximately 1650 ft AGL. More moderate turbulence was encountered on the missed approach. Subsequently, an uneventful landing was made in msy where the exceedances were noted in the aircraft logbook.

Original NASA ASRS Text

Title: AN A320 CAPT RPTED THAT MODERATE TURB AND WINDSHEAR CAUSED A FLAP OVERSPD.

Narrative: ON ARR, RWY 18 AT MSY, ENCOUNTERED MODERATE TURB WITH SIGNIFICANT UPDRAFTS/DOWNDRAFTS, CAUSED THE ACFT TO EXCEED FLAP LIMITATIONS BY APPROX 10 KTS ON 2 OCCASIONS, WHICH WAS FOLLOWED BY A WINDSHEAR/MISSED APCH COMMENCING AT APPROX 1650 FT AGL. MORE MODERATE TURB WAS ENCOUNTERED ON THE MISSED APCH. SUBSEQUENTLY, AN UNEVENTFUL LNDG WAS MADE IN MSY WHERE THE EXCEEDANCES WERE NOTED IN THE ACFT LOGBOOK.

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.