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A300 flight crew reports leading edge slats fail to extend after selection. Flight crew complies with checklist and lands with full trailing edge flaps and le flaps retracted.
| Attributes | |
| ACN | 754371 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 120 flight time total : 9000 flight time type : 2000 |
| ASRS Report | 754371 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 90 flight time total : 13500 flight time type : 500 |
| ASRS Report | 754369 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : ecam other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
The first officer was flying the aircraft. Takeoff; departure; en route normal. While in the terminal environment approach asked us to slow to 210 KTS. Subsequently; told to slow to 170 KTS. The first officer asked for slat extension and at that time the slats failed to extend. The captain asked for vectors from approach control so we could run appropriate checklist. The captain ran the checklist while the first officer continued to fly the aircraft. After performing checklist procedures; the captain declared an emergency with approach control and assumed the flying duties of the aircraft. Landing was normal with zero slats (abnormal configuration). First officer performed pilot monitoring duties once the captain assumed control of the aircraft. While performing the appropriate checklist for the slat malfunction and approach/landing; the captain coordinated communications with company dispatch and maintenance control. Landing was normal. Cleared the runway and taxied to parking.callback conversation with reporter revealed the following information: maintenance discovered that a hydraulic valve for the right le slat failed causing that slat to remain retracted which triggered the slat asymmetry system preventing the left le slat from extending. The aircraft handled normally but landed at higher airspeed.
Original NASA ASRS Text
Title: A300 FLT CREW REPORTS LEADING EDGE SLATS FAIL TO EXTEND AFTER SELECTION. FLT CREW COMPLIES WITH CHECKLIST AND LANDS WITH FULL TRAILING EDGE FLAPS AND LE FLAPS RETRACTED.
Narrative: THE FO WAS FLYING THE AIRCRAFT. TAKEOFF; DEPARTURE; ENRTE NORMAL. WHILE IN THE TERMINAL ENVIRONMENT APPROACH ASKED US TO SLOW TO 210 KTS. SUBSEQUENTLY; TOLD TO SLOW TO 170 KTS. THE FO ASKED FOR SLAT EXTENSION AND AT THAT TIME THE SLATS FAILED TO EXTEND. THE CAPT ASKED FOR VECTORS FROM APPROACH CONTROL SO WE COULD RUN APPROPRIATE CHECKLIST. THE CAPT RAN THE CHECKLIST WHILE THE FO CONTINUED TO FLY THE AIRCRAFT. AFTER PERFORMING CHECKLIST PROCEDURES; THE CAPT DECLARED AN EMERGENCY WITH APPROACH CONTROL AND ASSUMED THE FLYING DUTIES OF THE AIRCRAFT. LANDING WAS NORMAL WITH ZERO SLATS (ABNORMAL CONFIGURATION). FO PERFORMED PILOT MONITORING DUTIES ONCE THE CAPTAIN ASSUMED CONTROL OF THE AIRCRAFT. WHILE PERFORMING THE APPROPRIATE CHECKLIST FOR THE SLAT MALFUNCTION AND APPROACH/LANDING; THE CAPTAIN COORDINATED COMMUNICATIONS WITH COMPANY DISPATCH AND MAINTENANCE CONTROL. LANDING WAS NORMAL. CLEARED THE RUNWAY AND TAXIED TO PARKING.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: MAINTENANCE DISCOVERED THAT A HYDRAULIC VALVE FOR THE RIGHT LE SLAT FAILED CAUSING THAT SLAT TO REMAIN RETRACTED WHICH TRIGGERED THE SLAT ASYMMETRY SYSTEM PREVENTING THE LEFT LE SLAT FROM EXTENDING. THE ACFT HANDLED NORMALLY BUT LANDED AT HIGHER AIRSPEED.
Data retrieved from NASA's ASRS site as of January 2009 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.