An A320 overwing slide deployed at the gate for no apparent reason.

Attributes
ACN	866483
Time
Date	200912
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Escape Slide
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 94 Flight Crew Total 21700 Flight Crew Type 2190
Person 2
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 240 Flight Crew Total 14500 Flight Crew Type 3700
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

I was saying goodbye to the passengers at the door when a deplaning passenger complained of loud air noise at overwing exit. A second passenger confirmed the noise. After all passengers were deplaned; I went back to look at it and decided to reseat the handle. I pulled the exit handle slightly out of position and tried to replace it; but it would not reseat. I then noticed the overwing slide had deployed.

Original NASA ASRS Text

Title: An A320 overwing slide deployed at the gate for no apparent reason.

Narrative: I was saying goodbye to the passengers at the door when a deplaning passenger complained of loud air noise at overwing exit. A second passenger confirmed the noise. After all passengers were deplaned; I went back to look at it and decided to reseat the handle. I pulled the exit handle slightly out of position and tried to replace it; but it would not reseat. I then noticed the overwing slide had deployed.

Data retrieved from NASA's ASRS site as of April 2012 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.