Cyrile E. King Airport
Aircraft Accident/Incident Report

St. Thomas
Monday, November 26, 1990 7:06 AST

NTSB Narrative Summary Released at Completion of Accident

LEFT MAIN LANDING GEAR COLLAPSED DURING TAXI FROM LANDING. LEFT MAIN LANDING GEAR SIDE BRACE LOWER ARM HAD SEPARATED DUE TO FATIGUE IN THE AREA WHERE A BEARING IS MOUNTED. THE FATIGUE CRACK ORIGINATED IN AN AREA OF CORROSION DAMAGE ON THE LOWER ARM OUTSIDE OF THE BEARING RACE.

NTSB Probable Cause Narrative

THE FAILURE OF THE LEFT MAIN LANDING GEAR SIDE BRACE LOWER ARM DUE TO FATIGUE RESULTING FROM CORROSION FORMATION, WHICH RESULTED FROM IMPROPER DESIGN TO PREVENT CORROSION FORMATION.

Event Information

Type of Event Incident
Event Date 11/26/1990
Event Day of the Week Monday
Time of Event 706
Event Time Zone Atlantic Standard Time
Event City ST. THOMAS
Event State VIRGIN ISLANDS
Event Country --
Zipcode of the event site 00801
Event Date Year 1990
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CYRILE E. KING
Event Location Nearest Airport ID STT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 15
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 706 Atlantic Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID STT
Elevation of weather observation facility 15
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation AST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 47
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5030
NTSB Notification Source --
NTSB Notification Date Nov 26 1990 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information 43226
Date of most recent change to record Dec 12 2000 5:33PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N971NA
NTSB Number MIA91IA032
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ATR
Aircraft Model ATR-42-300
Aircraft Series Identifier ATR 42-300
Aircraft Serial Number ATR42-300
Certified Max Gross Weight 35604
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 47
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 7728
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name EXECUTIVE AIRLINES INC
Aircraft Owner Street Address P.O. BOX 38082
Aircraft Owner City SAN JUAN
Aircraft Owner State PR
Aircraft Owner Country
Aircraft Owner Zipcode 00937
Operator is an individual? --
Operator Name EXECUTIVE AIR CHARTER, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address SAN JUAN INT'L. AIRPORT
Operator City SAN JUAN
Operator State PR
Operator Country
Operator Zip code 00913
Operator Code TRBA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SJU
Departure City SAN JUAN
Departure State PR
Departure Country
Departure Time 635
Departure Time Zone AST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 28 2001 1:04PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --