NTSB Identification: LAX85IA023.
The docket is stored on NTSB microfiche number 27042.
Scheduled 14 CFR AMERICAN AIRLINES, INC.
Incident occurred Wednesday, October 17, 1984 in LAS VEGAS, NV
Aircraft: BOEING 727-227, registration: N722AA
Injuries: 30 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

AN UNCOMMANDED DEPLOYMENT OF THE #8 LEADING EDGE SLAT OCCURRED DURING A CLIMB. CONTROL OF THE ACFT WAS NOT AFFECTED & THE FLT CONTINUED TO THE DESTINATION. THE CREW ATTEMPT TO RECYCLE THE SLATS, BUT TO NO AVAIL. AN EXAM OF THE #8 SLAT ACTUATOR DID NOT DISCLOSE A MALFUNCTION OR FAILURE. HOWEVER, BOEING DID REPORT THE ACTUATOR RETRACT LOCK SWITCH DISPLAYED EVIDENCE OF AN INTERMITTENT MALFUNCTION THAT COULD HAVE FALSELY INDICATED THAT THE ACTUATOR WAS RETRACTED, WHEN IN REALITY IT HAD NOT.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

ELECTRICAL SYSTEM,ELECTRIC SWITCH..ERRATIC

Index for Oct1984 | Index of months