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NTSB Report
November 29, 1989 · Boeing 727-225 · N8835E
Atlanta, GA
Overview
Report Status
Probable Cause
Event Type
Incident
Date
November 29, 1989
Injury Outcomes
No injuries (53 uninjured)
Location
Atlanta, GA
Aircraft
Boeing 727-225
Tail Number
N8835E
Injuries
None
Aircraft Damage
Minor
NTSB Number
ATL90IA033
DURING GEAR RETRACTION AFTER TAKEOFF, THE FLIGHT CREW NOTED THAT THE RIGHT MAIN LANDING GEAR (MLG) DOOR WARNING LIGHT REMAINED ILLUMINATED. THE LANDING GEAR WAS CYCLED, BUT THE CONDITION WAS NOT CORRECTED. ATTEMPTS TO EXTEND THE RIGHT MLG WERE UNSUCCESSFUL & THE RIGHT MLG REMAINED PARTIALLY EXTENDED. SUBSEQUENTLY A LANDING WAS MADE WITH THE LEFT MLG AND NOSE GEAR EXTENDED & THE RIGHT MLG PARTIALLY EXTENDED. AFTER LANDING THE ACFT WAS LIFTED FROM THE RWY & THE RIGHT MLG FELL FREELY. THE UPLOCK HOOK WAS FOUND POSITIONED UP. EXAMINATION REVEALED THAT THE DOOR ACTUATOR BOLTS WERE LOOSE & THE SERRATED PLATE HAD BEEN DISPLACED. THE BOLTS SHOULD BE INSTALLED WITH 25-42 FT-LBS TORQUE; INBOARD WAS LOOSENED WITH 10 FT-LBS, TWO OTHERS WERE FINGER TIGHT. ACTUATOR FITTING DISPLACED FULLY OUTBOARD. BOEING SERVICE LETTER 727-SL-32-47 APPLIES.
NTSB Probable Cause
INADEQUATE MAINTENANCE AND INSPECTION BY THE OPERATOR.
Full Narrative
DURING GEAR RETRACTION AFTER TAKEOFF, THE FLIGHT CREW NOTED THAT THE RIGHT MAIN LANDING GEAR (MLG) DOOR WARNING LIGHT REMAINED ILLUMINATED. THE LANDING GEAR WAS CYCLED, BUT THE CONDITION WAS NOT CORRECTED. ATTEMPTS TO EXTEND THE RIGHT MLG WERE UNSUCCESSFUL & THE RIGHT MLG REMAINED PARTIALLY EXTENDED. SUBSEQUENTLY A LANDING WAS MADE WITH THE LEFT MLG AND NOSE GEAR EXTENDED & THE RIGHT MLG PARTIALLY EXTENDED. AFTER LANDING THE ACFT WAS LIFTED FROM THE RWY & THE RIGHT MLG FELL FREELY. THE UPLOCK HOOK WAS FOUND POSITIONED UP. EXAMINATION REVEALED THAT THE DOOR ACTUATOR BOLTS WERE LOOSE & THE SERRATED PLATE HAD BEEN DISPLACED. THE BOLTS SHOULD BE INSTALLED WITH 25-42 FT-LBS TORQUE; INBOARD WAS LOOSENED WITH 10 FT-LBS, TWO OTHERS WERE FINGER TIGHT. ACTUATOR FITTING DISPLACED FULLY OUTBOARD. BOEING SERVICE LETTER 727-SL-32-47 APPLIES.
Flight
Event TypeIncident
Event Time15:45 EST
Nearest AirportHartsfield Atlanta Int'L (0nm N)
Runway9L
Runway Length11889 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 727-225
Tail NumberN8835E
Aircraft CategoryAir
DamageMinor
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsP&W · JT8D-7B · Turbofan · 14000
Seats152
People & Injuries
Injury SummaryNo injuries (53 uninjured)
Fatal0
Serious0
Minor0
Uninjured53
Total53
Crew 1Age 51 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 17 kt
Visibility25 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time21:10
Weather SourceWFAC