Accident Details
Date
Monday, October 9, 1989
NTSB Number
CHI90IA006
Location
SAN FRANCISCO, CA
Event ID
20001213X29555
Coordinates
37.799781, -122.399513
Aircraft Damage
MINR
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
147
Total Aboard
147
Probable Cause and Findings
THE EXTREME WEAR AND EVENTUAL FAILURE OF A TORQUE TUBE IN THE INBOARD TRAILING EDGE FLAP SYSTEM. INSPECTION AND LUBRICATION INTERVALS WERE A FACTOR, AS WAS THE PHYSICAL LOCATION OF THE TORQUE TUBE WITH REFERENCE TO EXTERNAL FACTORS.
Aircraft Information
Registration
N512US
Make
BOEING
Serial Number
23201
Engine Type
Turbo-jet
Registered Owner (Historical)
Name
WELLS FARGO BANK NORTHWEST NA TRUSTEE
Address
MAC: U1240-026
260 CHARLES LINDBERGH DR
Status
Deregistered
City
SALT LAKE CITY
State / Zip Code
UT 84116-2812
Country
United States
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI90IA006