Accident Details
Date
Sunday, December 31, 1989
NTSB Number
LAX90FA061
Location
TUCSON, AZ
Event ID
20001213X29969
Coordinates
32.150516, -110.929687
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
10
Uninjured
123
Total Aboard
133
Probable Cause and Findings
FAILURE OF THE OPERATOR'S MAINTENANCE PERSONNEL TO DETECT AN ELECTRICAL WIRE WHICH HAD CHAFED AGAINST A HYDRAULIC LINE AND WHICH EVENTUALLY ARCED CAUSING A LEAK IN THE HYDRAULIC LINE AND SUBSEQUENT FIRE AND HYDRAULIC SYSTEM FAILURE. IN ADDITION, PREVIOUS WEAR OF CHECK VALVES IN THE BACKUP HYDRAULIC SYSTEMS PREVENTED THE AIRPLANE FROM STOPPING ON THE RUNWAY. A CONTRIBUTING FACTOR WAS THE AIRPLANE MANUFACTURER'S INADEQUATE GUIDANCE FOR MAINTAINING THE HYDRAULIC COMPONENTS.
Aircraft Information
Registration
N198AW
Make
BOEING
Serial Number
19710
Model / ICAO
737-204
Registered Owner (Historical)
Name
PACIFIC AERO SUPPORT INC
Address
1721 W VALLEY HWY N
Status
Deregistered
City
AUBURN
State / Zip Code
WA 98001
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# LAX90FA061