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Air carrier aircraft changes destination to lax account losing a portion of leading edge slats on right wing during flap retraction cycle.
| Attributes | |
| ACN | 115966 |
| Time | |
| Date | 198907 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude climbout : initial |
| Route In Use | departure sid : sid enroute : 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 : 240 flight time total : 20000 flight time type : 240 |
| ASRS Report | 115966 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 260 flight time total : 11500 flight time type : 1750 |
| ASRS Report | 115962 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
During slat retraction after takeoff sfo a short vibration was felt. A cabin attendant reported a wire or cable trailing from the right wing. Inspection by the second officer revealed that the #7 or outboard leading edge slat was missing. The aircraft was landed at lax using 35 degree flaps, slats retracted. No recommendations. Supplemental information from acn 115962: at slat retract speed (approximately 230 KTS), first officer called for slat retract which captain accomplished. We felt a vibration of short duration and then smooth flight. (This occurred at 4000' MSL.)
Original NASA ASRS Text
Title: ACR ACFT CHANGES DESTINATION TO LAX ACCOUNT LOSING A PORTION OF LEADING EDGE SLATS ON RIGHT WING DURING FLAP RETRACTION CYCLE.
Narrative: DURING SLAT RETRACTION AFTER TKOF SFO A SHORT VIBRATION WAS FELT. A CABIN ATTENDANT REPORTED A WIRE OR CABLE TRAILING FROM THE RIGHT WING. INSPECTION BY THE S/O REVEALED THAT THE #7 OR OUTBOARD LEADING EDGE SLAT WAS MISSING. THE ACFT WAS LANDED AT LAX USING 35 DEG FLAPS, SLATS RETRACTED. NO RECOMMENDATIONS. SUPPLEMENTAL INFORMATION FROM ACN 115962: AT SLAT RETRACT SPEED (APPROX 230 KTS), F/O CALLED FOR SLAT RETRACT WHICH CAPT ACCOMPLISHED. WE FELT A VIBRATION OF SHORT DURATION AND THEN SMOOTH FLT. (THIS OCCURRED AT 4000' MSL.)
Data retrieved from NASA's ASRS site as of August 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.