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Air carrier medium large transport aircraft wing slats would not lock in the retracted position during climb and level off to cruise.
| Attributes | |
| ACN | 227315 |
| Time | |
| Date | 199211 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : las |
| State Reference | NV |
| Altitude | msl bound lower : 25000 msl bound upper : 25000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 11000 flight time type : 1400 |
| ASRS Report | 227315 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On the climb out of las to ewr we were unable to stow the slat handle in the up and locked detent. The handle movement was 2 inches fore and aft. As the handle moved aft the slat disagree light would illuminate and slats would begin to deploy. We contacted maintenance control and flight dispatch. A mutual decision was made to land in den for maintenance. We continued to den below flap speed/mach. Upon arrival over den we burned fuel down to land under maximum landing weight. Maintenance found dirt and debris in the slat handle mechanism causing the handle to bind and not operate normally.
Original NASA ASRS Text
Title: ACR MLG ACFT WING SLATS WOULD NOT LOCK IN THE RETRACTED POS DURING CLB AND LEVEL OFF TO CRUISE.
Narrative: ON THE CLBOUT OF LAS TO EWR WE WERE UNABLE TO STOW THE SLAT HANDLE IN THE UP AND LOCKED DETENT. THE HANDLE MOVEMENT WAS 2 INCHES FORE AND AFT. AS THE HANDLE MOVED AFT THE SLAT DISAGREE LIGHT WOULD ILLUMINATE AND SLATS WOULD BEGIN TO DEPLOY. WE CONTACTED MAINT CTL AND FLT DISPATCH. A MUTUAL DECISION WAS MADE TO LAND IN DEN FOR MAINT. WE CONTINUED TO DEN BELOW FLAP SPD/MACH. UPON ARR OVER DEN WE BURNED FUEL DOWN TO LAND UNDER MAX LNDG WT. MAINT FOUND DIRT AND DEBRIS IN THE SLAT HANDLE MECHANISM CAUSING THE HANDLE TO BIND AND NOT OPERATE NORMALLY.
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.