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NTSB Report
December 29, 1983 · Boeing 707-123B · N2773
Oakland, CA
Overview
Report Status
Preliminary report
Event Type
Incident
Date
December 29, 1983
Injury Outcomes
No injuries (165 uninjured)
Location
Oakland, CA
Aircraft
Boeing 707-123B
Tail Number
N2773
Operator
American Trans Air
Injuries
None
Aircraft Damage
Minor
NTSB Number
LAX84IA119
THE ACFT EXPERIENCED A STRONG SHIMMY & VIBRATION ON TAKEOFF WHICH WAS ATTRIBUTED TO DEEP RUTS IN THE SNOW. AFTER LANDINGON DECELERATION THE VIBRATION BECAME SO SEVERE THAT THE PLT STOPPED ON THE RWY CENTERLINE & ORDERED AN EVACUATION. IT WAS DETERMINED THAT THE NOSE GEAR TOWING & STEERING CONNECTING LINK WAS DISCONNECTED FROM THE NOSE STEERING COLLAR WITH THE STEERING QUICK RELEASE PIN INSTALLED IN THE DISCONNECTED LINK PREVENTING CONTINUITY BETWEEN COCKPIT STEERING & THE NOSE WHEELS WHICH WERE ALLOWED FREE PLAY.
Full Narrative
THE ACFT EXPERIENCED A STRONG SHIMMY & VIBRATION ON TAKEOFF WHICH WAS ATTRIBUTED TO DEEP RUTS IN THE SNOW. AFTER LANDINGON DECELERATION THE VIBRATION BECAME SO SEVERE THAT THE PLT STOPPED ON THE RWY CENTERLINE & ORDERED AN EVACUATION. IT WAS DETERMINED THAT THE NOSE GEAR TOWING & STEERING CONNECTING LINK WAS DISCONNECTED FROM THE NOSE STEERING COLLAR WITH THE STEERING QUICK RELEASE PIN INSTALLED IN THE DISCONNECTED LINK PREVENTING CONTINUITY BETWEEN COCKPIT STEERING & THE NOSE WHEELS WHICH WERE ALLOWED FREE PLAY.
Flight
Event TypeIncident
Event Time10:15 PST
Nearest AirportMetropolitan Oakland Int' (0nm N)
Runway29
Runway Length10000 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 707-123B
Tail NumberN2773
Aircraft CategoryAir
DamageMinor
OperatorAmerican Trans Air
Operating RulePart 121
Engines4
Engine TypeTurbofan
Engine DetailsP&W · JT3D-1MC6 · Turbofan
Seats177
People & Injuries
Injury SummaryNo injuries (165 uninjured)
Fatal0
Serious0
Minor0
Uninjured165
Total165
Crew 1Age 53 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 6 kt
Visibility10 sm
CeilingBroken clouds 5000 ft
Temperature / Dew Point55 / 46
Altimeter0
Observation Time17:45
Weather SourcePILO