DC10 crew had a stick shaker activation as the crew was retracting the slats.

Attributes
ACN	562470
Time
Date	200210
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	msl single value : 4000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	common carrier : air carrier
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 16000 flight time type : 600
ASRS Report	562470
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	562471
Events
Anomaly	aircraft equipment problem : critical inflight encounter : turbulence other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : sticks shaker other flight crewa other flight crewb
Resolutory Action	flight crew : overrode automation flight crew : overcame equipment problem other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On departure out of las just after slats were selected, retraction the stall warning (stick shaker) started along with slat disagreement light. Autothrottles were on with climb set and N1 selected. As soon as stick shaker started, I pushed throttles forward, probably near takeoff setting. Airspeed was accelerating and aircraft climbing great. Accelerated to 260 KTS (clean maneuvering for our weight and also maximum speed slats extend). Stick shaker continued to shake and slat disagreement light remained on. I handed aircraft to first officer and then worked with the flight engineer on the checklist. We did the stall warning on while not stalled checklist. The procedure pulls the breakers to stop the stick shaker and stall system. It then has you reset the breakers. The system apparently was then reset and we had no stick shaker. We then did the procedure to reset the automatic slat system and the slat disagreement light went out. We were wings level climbing during occurrence. Just as slat handle was being moved from extend to retract, the aircraft encountered very light turbulence and I suspected that to be the cause of the warning. The scheduled slat retract speed was 226 KTS. I called for slat retract around 232 KTS. When I felt the stick shaker and the light turbulence, I fully expected the warning to stop as we accelerated. It did not. We discussed the problem after all checklists were complete and decided the turbulence had something to do with the activation. When the stick shaker did not return after resetting breakers, we agreed we had stall protection.

Original NASA ASRS Text

Title: DC10 CREW HAD A STICK SHAKER ACTIVATION AS THE CREW WAS RETRACTING THE SLATS.

Narrative: ON DEP OUT OF LAS JUST AFTER SLATS WERE SELECTED, RETRACTION THE STALL WARNING (STICK SHAKER) STARTED ALONG WITH SLAT DISAGREEMENT LIGHT. AUTOTHROTTLES WERE ON WITH CLB SET AND N1 SELECTED. AS SOON AS STICK SHAKER STARTED, I PUSHED THROTTLES FORWARD, PROBABLY NEAR TKOF SETTING. AIRSPD WAS ACCELERATING AND ACFT CLBING GREAT. ACCELERATED TO 260 KTS (CLEAN MANEUVERING FOR OUR WT AND ALSO MAX SPD SLATS EXTEND). STICK SHAKER CONTINUED TO SHAKE AND SLAT DISAGREEMENT LIGHT REMAINED ON. I HANDED ACFT TO FO AND THEN WORKED WITH THE FE ON THE CHKLIST. WE DID THE STALL WARNING ON WHILE NOT STALLED CHKLIST. THE PROC PULLS THE BREAKERS TO STOP THE STICK SHAKER AND STALL SYS. IT THEN HAS YOU RESET THE BREAKERS. THE SYS APPARENTLY WAS THEN RESET AND WE HAD NO STICK SHAKER. WE THEN DID THE PROC TO RESET THE AUTO SLAT SYS AND THE SLAT DISAGREEMENT LIGHT WENT OUT. WE WERE WINGS LEVEL CLBING DURING OCCURRENCE. JUST AS SLAT HANDLE WAS BEING MOVED FROM EXTEND TO RETRACT, THE ACFT ENCOUNTERED VERY LIGHT TURB AND I SUSPECTED THAT TO BE THE CAUSE OF THE WARNING. THE SCHEDULED SLAT RETRACT SPD WAS 226 KTS. I CALLED FOR SLAT RETRACT AROUND 232 KTS. WHEN I FELT THE STICK SHAKER AND THE LIGHT TURB, I FULLY EXPECTED THE WARNING TO STOP AS WE ACCELERATED. IT DID NOT. WE DISCUSSED THE PROB AFTER ALL CHKLISTS WERE COMPLETE AND DECIDED THE TURB HAD SOMETHING TO DO WITH THE ACTIVATION. WHEN THE STICK SHAKER DID NOT RETURN AFTER RESETTING BREAKERS, WE AGREED WE HAD STALL PROTECTION.

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.