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A B767-300 developed an asymmetric leading edge slat accompanied by a binding flap handle and roll motion when flaps 25 was selected on short final. The approach was abandoned; the checklist completed and the flight returned for an uneventful landing.
| Attributes | |
| ACN | 1322161 |
| Time | |
| Date | 201601 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Leading Edge Slat |
| Person 1 | |
| Function | Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
I was the pilot monitoring as we approached runway 7R. While configuring for landing; we got an amber icas message and rolling motion as I selected flaps from 20 to 25. Also annunciated was the leading edge light advising us we had an asymmetry problem. I felt the flap handle binding as I moved it toward 25 so I placed it back at 20 degrees. We abandoned the approach to run the checklist.after running the checklist and preparing the cabin and passengers for the landing we went back toward the airport and landed on 7L at our present configuration. We taxied back to the gate without incident. After landing we found that the inboard leading edge slats were only in the takeoff position while the outboard leading edge was in the landing position.
Original NASA ASRS Text
Title: A B767-300 developed an asymmetric leading edge slat accompanied by a binding flap handle and roll motion when flaps 25 was selected on short final. The approach was abandoned; the checklist completed and the flight returned for an uneventful landing.
Narrative: I was the pilot monitoring as we approached runway 7R. While configuring for landing; we got an amber ICAS message and rolling motion as I selected flaps from 20 to 25. Also annunciated was the Leading edge light advising us we had an asymmetry problem. I felt the flap handle binding as I moved it toward 25 so I placed it back at 20 degrees. We abandoned the approach to run the checklist.After running the checklist and preparing the cabin and passengers for the landing we went back toward the airport and landed on 7L at our present configuration. We taxied back to the gate without incident. After landing we found that the inboard leading edge slats were only in the takeoff position while the outboard leading edge was in the landing position.
Data retrieved from NASA's ASRS site 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.