Bob Benzon
Bob Benzon
air bleed changed engine prior routine saturday type valve
The left-hand modulator valve was changed the Saturday prior to the accident. It's a routine maintenance type thing. It modulates bleed air from the engine that's used for air-conditioning and pressurization of the aircraft.
broken damaged engine fragmented large left several virtually
It's virtually intact, heavily damaged of course, but not broken apart. The left engine was more fragmented into several large sections.
ambient analyze cockpit determine engines fast frequency listening noises picks switch voice
It picks up ambient noises in the cockpit, switch movements, it picks up any noise, really. We can even analyze the frequency of the engines and determine how fast they were rotating by listening to the cockpit voice recorder.
broken engine virtually
We removed the right engine from the crater and it's virtually intact. It's heavily damaged, of course, but not broken apart.