Fort Lauderdale Int'l Airport
Aircraft Accident/Incident Report

Fort Lauderdale, Florida 33315
Tuesady, June 27, 2000 20:30 EDT

NTSB Narrative Summary Released at Completion of Accident

The captain stated that the copilot was flying the aircraft, and after rotation, as they were climbing through about 150 to 200 feet, there was the sound of a loud bang, and they felt extreme vibrations. The captain stated that the No. 2 engine gages went to zero, and there was no indication of fire. He further stated that the copilot continued flying the aircraft, and stayed in the pattern, returning for an otherwise uneventful landing. Postincident examination of the airplane revealed that a 2 to 3-foot section of the right engine nacelle, from approximately the 9:00 to the 6:00 o'clock positions, had torn outward, in line with the high-pressure turbine (HPT) area of the engine. Macroscopic examinations, as well as microscopic examinations of the No. 2 engine and recovered portions were conducted, and the examinations revealed a 360-degree circumferential groove on the aft face of the disk, just outboard of the aft 4-tooth knife-edge steel flange. The groove in the disk was consistent with the disk having been in contact with the 1st-stage low-pressure turbine support/nozzle assembly inner casting forward static seal. In addition, rivet holes on the forward static seal, and on the forward flange revealed the presence of fretting marks, which were inconsistent with those of a tightly mated assembly. Instead, the fretting was indicative of an assembly that allowed relative motion between the surfaces. Furthermore, an examination using a scanning electron microscope on the available rivet heads and rivet shanks revealed that one of the rivet shanks showed indications of fatigue, and that the fatigue originated from at least two areas on the outer diameter surface of the shank, and was indicative of high cycle fatigue. There were also heavy fretting underneath the heads of the rivets on the surface that mated with the seal, and the fretting was similar to that found on the front face of the seal, The fretting was consistent with there being insufficient clamping preload on the rivets.

NTSB Probable Cause Narrative

the fatigue failure of the rivets used to secure the inner casting forward static seal to the 1st-stage low-pressure turbine support/nozzle assembly. The failure of the rivets allowed the forward static seal to machine a groove into the 2nd-stage high-pressure turbine disk to a depth that the disk could not withstand the operating loads, eventually leading to a disk burst and a high pressure turbine failure.

Event Information

Type of Event Incident
Event Date 6/27/2000
Event Day of the Week Tuesday
Time of Event 2030
Event Time Zone Eastern Daylight Time
Event City FORT LAUDERDALE
Event State FLORIDA
Event Country --
Zipcode of the event site 33315
Event Date Year 2000
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport FORT LAUDERDALE INT'L
Event Location Nearest Airport ID FLL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 11
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1953 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID FLL
Elevation of weather observation facility 11
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 79
Dew Point at event time (in degress fahrenheit) 72
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1100
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 10824
NTSB Notification Source FAA COMM CNTR ATL
NTSB Notification Date Jun 27 2000 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Oct 23 2001 10:32AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number XATDU
NTSB Number MIA00IA191
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Dassault
Aircraft Model F2TH FALCON
Aircraft Series Identifier F2TH FALCO
Aircraft Serial Number 029
Certified Max Gross Weight 36500
Aircraft Category Airplane
Aircraft Registration Class Foreign Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection May 3 2000 12:00AM
Airframe hours since last inspection 73
Airframe Hours 2092
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AVIACION COMERCIAL DE AMERICA
Aircraft Owner Street Address AV CONSTITUTION # 444,
Aircraft Owner City MONTERREY
Aircraft Owner State OF
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Positioning
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code FLL
Departure City
Departure State
Departure Country
Departure Time 2030
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code MMMY
Destination City MONTERREY
Destination State OF
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 5 2001 4:45AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 9
Runway Length 9000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --