B757 has overwing slide deploy while in cruise.

Attributes
ACN	688703
Time
Date	200602
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
Experience	flight attendant time airline total : 19 flight attendant time total : 19 flight attendant time type : 80
ASRS Report	688703
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical non adherence : company policies
Independent Detector	other other : 1
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Supplementary
Problem Areas	Cabin Crew Human Performance Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

After pushback; we returned to gate for an indicator light on spoilers. After that was checked and ok'ed; the captain called back to ask flight attendants to check the overwing exits. He said they showed a light in cockpit of a slide out. After checking; he said we were cleared to take off. About 45 mi out of dfw; I was picking up after second beverage service and heard a loud boom and the plane dipped slightly. I called the cockpit to ask what it was and the cockpit said they were unaware of anything. Told them I would call back and went back up the aisle and checked on the left side out the window. A passenger and myself noticed the overwing slide had deployed. The exits from the inside appeared to be normal. I returned to the aft galley and called the cockpit again and informed them of the slide and asked them if anything needed to be done; or if passenger needed to be reseated and was told no; everything would proceed as normal.

Original NASA ASRS Text

Title: B757 HAS OVERWING SLIDE DEPLOY WHILE IN CRUISE.

Narrative: AFTER PUSHBACK; WE RETURNED TO GATE FOR AN INDICATOR LIGHT ON SPOILERS. AFTER THAT WAS CHKED AND OK'ED; THE CAPT CALLED BACK TO ASK FLT ATTENDANTS TO CHK THE OVERWING EXITS. HE SAID THEY SHOWED A LIGHT IN COCKPIT OF A SLIDE OUT. AFTER CHKING; HE SAID WE WERE CLRED TO TAKE OFF. ABOUT 45 MI OUT OF DFW; I WAS PICKING UP AFTER SECOND BEVERAGE SVC AND HEARD A LOUD BOOM AND THE PLANE DIPPED SLIGHTLY. I CALLED THE COCKPIT TO ASK WHAT IT WAS AND THE COCKPIT SAID THEY WERE UNAWARE OF ANYTHING. TOLD THEM I WOULD CALL BACK AND WENT BACK UP THE AISLE AND CHKED ON THE L SIDE OUT THE WINDOW. A PAX AND MYSELF NOTICED THE OVERWING SLIDE HAD DEPLOYED. THE EXITS FROM THE INSIDE APPEARED TO BE NORMAL. I RETURNED TO THE AFT GALLEY AND CALLED THE COCKPIT AGAIN AND INFORMED THEM OF THE SLIDE AND ASKED THEM IF ANYTHING NEEDED TO BE DONE; OR IF PAX NEEDED TO BE RESEATED AND WAS TOLD NO; EVERYTHING WOULD PROCEED AS NORMAL.

Data retrieved from NASA's ASRS site as of January 2009 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.