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NTSB Report
May 27, 1982 · Douglas DC10-10 · N1833U
San Francisco, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 27, 1982
Injury Outcomes
25 injuries (25 minor injuries), 113 uninjured
Location
San Francisco, CA
Aircraft
Douglas DC10-10
Tail Number
N1833U
Operator
United Airlines
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
LAX82FA195
DURING THE INITIAL PUSHBACK FROM THE GATE PRIOR TO ENG START A LOUD NOISE WAS HEARD & THE ACFT NOSE SLOWLY SETTLED ONTO THE TUG THAT WAS PERFORMING THE PUSHBACK. THE CAPTAIN ORDERED THE ACFT EVACUATED USING THE EMERGENCY SLIDES. THE UPPER JAW OF THE TOWBAR HAD FAILED DUE TO EXTENSIVE STRESS-CORROSION CRACKING. THIS FAILURE RESULTED IN THE TOWBAR IMPACTING THE NOSE LANDING GEAR CAUSING A FAILURE OF THE NOSE GEAR LOWER DRAG LINK UPPER CLEVIS. THE NOSE GEAR THEN COLLAPSED & THE ACFT SETTLED ONTO THE TUG.
Full Narrative
DURING THE INITIAL PUSHBACK FROM THE GATE PRIOR TO ENG START A LOUD NOISE WAS HEARD & THE ACFT NOSE SLOWLY SETTLED ONTO THE TUG THAT WAS PERFORMING THE PUSHBACK. THE CAPTAIN ORDERED THE ACFT EVACUATED USING THE EMERGENCY SLIDES. THE UPPER JAW OF THE TOWBAR HAD FAILED DUE TO EXTENSIVE STRESS-CORROSION CRACKING. THIS FAILURE RESULTED IN THE TOWBAR IMPACTING THE NOSE LANDING GEAR CAUSING A FAILURE OF THE NOSE GEAR LOWER DRAG LINK UPPER CLEVIS. THE NOSE GEAR THEN COLLAPSED & THE ACFT SETTLED ONTO THE TUG.
Flight
Event TypeAccident
Event Time18:55 PDT
Nearest AirportSan Francisco (0nm N)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftDouglas DC10-10
Tail NumberN1833U
Aircraft CategoryAir
DamageSubstantial
OperatorUnited Airlines
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsGe · CF6-6 · Turbofan · 39300
Seats254
People & Injuries
Injury Summary25 injuries (25 minor injuries), 113 uninjured
Fatal0
Serious0
Minor25
Uninjured113
Total138
Crew 1Age 53 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 12 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point14 C / 0 C
Altimeter0