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NTSB Report
October 17, 1984 · Boeing 727-227 · N722AA
Las Vegas, NV
Overview
Report Status
Preliminary report
Event Type
Incident
Date
October 17, 1984
Injury Outcomes
No injuries (30 uninjured)
Location
Las Vegas, NV
Aircraft
Boeing 727-227
Tail Number
N722AA
Injuries
None
NTSB Number
LAX85IA023
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LOCK SWITCH DISPLAYED EVIDENCE OF AN INTERMITTENT MALFUNCTION THAT COULD HAVE FALSELY INDICATED THAT THE ACTUATOR WAS RETRACTED, WHEN IN REALITY IT HAD NOT.
Full Narrative
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LOCK SWITCH DISPLAYED EVIDENCE OF AN INTERMITTENT MALFUNCTION THAT COULD HAVE FALSELY INDICATED THAT THE ACTUATOR WAS RETRACTED, WHEN IN REALITY IT HAD NOT.
Flight
Event TypeIncident
Event Time06:54 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 727-227
Tail NumberN722AA
Aircraft CategoryAir
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsP&W · JT8D-9 · Turbofan · 14500
Seats134
People & Injuries
Injury SummaryNo injuries (30 uninjured)
Fatal0
Serious0
Minor0
Uninjured30
Total30
Crew 1Age 58 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 22 kt, gusting 30 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point59 / 34 C
Altimeter29.00 inHg
Observation Time13:48
Weather SourceWFAC