LAX82FA195

NTSB accident investigation · Douglas DC10-10 · San Francisco, CA · May 27, 1982

Accident · Minor injuriesField investigationFinal report
Date
May 26, 1982, 18:55 local (May 27, 1982, 01:55 UTC)
Place
San Francisco, CA
Injuries
25 minor, 113 uninjured
Damage
Substantial damage
Phase of flight
Pushback/towing
Aircraft
N1833UDouglas DC10-10
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1983
Report
Approved by Office Director
Case key
72493

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Nose gear collapsedTaxi - pushback/tow
Landing gear,nose gear - overload
Landing gear,nose gear - failure,total
Airport facilities,ramp facilities - failure,totalCause

Analysis

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.

Aircraft

Registration
N1833U
Reported as
Douglas DC10-10
Category
Airplane
Serial number
47965
Airframe hours
26,769
Engine
GE CF6-6, 39,300 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Part 121
Operator
United Airlines
Registered owner
United Airlines
Departed
SFO · San Francisco, CA
Destination
DEN · Denver, CO
Airport
SFO · San Francisco

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
53
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Flight hours
19,515 total · 1,249 in this make and model · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 12 knots
Visibility
12 statute miles
Temperature
140 °F