Miami International Airport
Aircraft Accident/Incident Report

Miami, Florida 33152
Monday, August 2, 1993 18:41 EDT

NTSB Narrative Summary Released at Completion of Accident

FLIGHT EXPERIENCED LOSS OF THE NUMBER ONE ENGINE CORE COWLING SHORTLY AFTER LIFTOFF. METALLURGICAL EXAMINATION OF THE SEPARATED COWLING INDICATED THE INBOARD FORWARD COWLING HINGE SUPPORT STRUCTURE HAD FAILED DUE TO FATIGUE. THIS ALLOWED THE COWLING TO OPEN AND THEN SEPARATE FROM THE ENGINE. THE HINGE REMAINED IN PLACE ON THE AIRCRAFT AFTER THE COWLING SEPARATED. THE MANUFACTURER OF THE COWLING, WHICH IS PART OF AN ENGINE HUSH KIT, REQUIRES THE HINGE SUPPORT STRUCTURE BE INSPECTED FOR CRACKS EACH 300 FLIGHT HOURS.

NTSB Probable Cause Narrative

THE IMPROPER INSPECTION OF THE ENGINE CORE COWLING, WHICH RESULTED IN FATIGUE CRACKS IN THE FORWARD INBOARD HINGE SUPPORT STRUCTURE TO GO UNDETECTED. THIS RESULTED IN THE HINGE SEPARATING AND THE COWLING SEPARATING IN FLIGHT.

Event Information

Type of Event Incident
Event Date 8/2/1993
Event Day of the Week Monday
Time of Event 1841
Event Time Zone Eastern Daylight Time
Event City MIAMI
Event State FLORIDA
Event Country --
Zipcode of the event site 33152
Event Date Year 1993
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MIAMI INTERNATIONAL
Event Location Nearest Airport ID MIA
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport 120
Airport Elevation 11
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1850 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID MIA
Elevation of weather observation facility 11
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 31
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1800
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5044
NTSB Notification Source --
NTSB Notification Date Aug 2 1993 12:00AM
NTSB Notification Time 1912
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:34PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N107BV
NTSB Number MIA93IA168
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 129: Foreign
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 707-341
Aircraft Series Identifier 707-341
Aircraft Serial Number 19321
Certified Max Gross Weight 328000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/Foreign Oper.
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 7
Number of Engines 4
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Aug 2 1993 12:00AM
Airframe hours since last inspection 0
Airframe Hours 9784
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ALG, INC.
Aircraft Owner Street Address 301 EAST 51ST STREET
Aircraft Owner City KANSAS CITY
Aircraft Owner State MO
Aircraft Owner Country
Aircraft Owner Zipcode 64112
Operator is an individual? --
Operator Name FAST AIR CARRIER LTD
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 520846
Operator City MIAMI
Operator State FL
Operator Country
Operator Zip code 33152
Operator Code FCLF
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 Non-scheduled
Indicates Domestic or International Flight International
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code MIA
Departure City
Departure State
Departure Country
Departure Time 1841
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code SPIM
Destination City LIMA
Destination State OF
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 9R
Runway Length 13000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --