What is NDE?
It is not what you think (Near Death Experience).
It is Non-Destructive Evaluation.
Why do we need NDE?
Whatever can go wrong, will go wrong.
Material Fatigue Failure
April 28, 1988, Aloha Airlines Flight 243, B737
The aircraft lost 1/3 of its roof due to a stress fracture while cruising at 24,000
feet. One Flight Attendant was sucked from the airplane, which subsequently
made a safe emergency landing.
Material Fatigue Failure
April 28, 1988, Aloha Airlines Flight 243, B737
The aircraft lost 1/3 of its roof due to a stress fracture while cruising at 24,000
feet. One Flight Attendant was sucked from the airplane, which subsequently
made a safe emergency landing.
Material Fatigue Failure
April 28, 1988, Aloha Airlines Flight 243, B737
The aircraft lost 1/3 of its roof due to a stress fracture while cruising at 24,000
feet. One Flight Attendant was sucked from the airplane, which subsequently
made a safe emergency landing.
Embrittled Hard Inclusion Failure
July 19, 1989, United Air Lines Flight 232, DC-10
The aircraft crashed while attempting an emergency landing after an uncontained engine
failure severed all hydraulic fluid lines. The failure was caused by a fatigue crack that
initiated from an undetected metallurgical defect in the titanium alloy fan disk.
Embrittled Hard Inclusion Failure
July 19, 1989, United Air Lines Flight 232, DC-10
The aircraft crashed while attempting an emergency landing after an uncontained engine
failure severed all hydraulic fluid lines. The failure was caused by a fatigue crack that
initiated from an undetected metallurgical defect in the titanium alloy fan disk.
Embrittled Hard Inclusion Failure
July 19, 1989, United Air Lines Flight 232, DC-10
The aircraft crashed while attempting an emergency landing after an uncontained engine
failure severed all hydraulic fluid lines. The failure was caused by a fatigue crack that
initiated from an undetected metallurgical defect in the titanium alloy fan disk.
Composite Failure
November 12, 2001, American Airlines Flight 587, Airbus A300
The aircraft crashed shortly after takeoff. Separation of the composite vertical
stabilizer is suspected as the precipitating event that led to an in-flight breakup of
the aircraft.
Composite Failure
November 12, 2001, American Airlines Flight 587, Airbus A300
The aircraft crashed shortly after takeoff. Separation of the composite vertical
stabilizer is suspected as the precipitating event that led to an in-flight breakup of
the aircraft.
Composite Failure
November 12, 2001, American Airlines Flight 587, Airbus A300
The aircraft crashed shortly after takeoff. Separation of the composite vertical
stabilizer is suspected as the precipitating event that led to an in-flight breakup of
the aircraft.
Electrical Wiring Insulation Failure
July 17, 1996, Trans World Airlines Flight 800, B747
The aircraft crashed shortly after takeoff due to the explosion of the center wing
fuel tank. A short circuit in the electrical wiring of the fuel quantity indication
system is suspected as the precipitating event that led to the explosion.
Electrical Wiring Insulation Failure
July 17, 1996, Trans World Airlines Flight 800, B747
The aircraft crashed shortly after takeoff due to the explosion of the center wing
fuel tank. A short circuit in the electrical wiring of the fuel quantity indication
system is suspected as the precipitating event that led to the explosion.
Electrical Wiring Insulation Failure
July 17, 1996, Trans World Airlines Flight 800, B747
The aircraft crashed shortly after takeoff due to the explosion of the center wing
fuel tank. A short circuit in the electrical wiring of the fuel quantity indication
system is suspected as the precipitating event that led to the explosion.