Air carrier large transport aircraft wing slat malfunction.

Attributes
ACN	215900
Time
Date	199207
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : msy
State Reference	LA
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : msy tower : msy
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : initial climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4000 flight time type : 2600
ASRS Report	215900
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After flap retraction, the #3 slat (large transport aircraft) reextended itself with the flap handle in the up position. This occurred once more in the air and once on the ground prior to having the actuator replaced. Once the actuator was replaced, all system worked normally. Actuator should be inspected periodically or replaced to prevent this from happening at high altitude.

Original NASA ASRS Text

Title: ACR LGT ACFT WING SLAT MALFUNCTION.

Narrative: AFTER FLAP RETRACTION, THE #3 SLAT (LGT ACFT) REEXTENDED ITSELF WITH THE FLAP HANDLE IN THE UP POS. THIS OCCURRED ONCE MORE IN THE AIR AND ONCE ON THE GND PRIOR TO HAVING THE ACTUATOR REPLACED. ONCE THE ACTUATOR WAS REPLACED, ALL SYS WORKED NORMALLY. ACTUATOR SHOULD BE INSPECTED PERIODICALLY OR REPLACED TO PREVENT THIS FROM HAPPENING AT HIGH ALT.

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.