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Old 3rd Aug 2009, 15:30
  #542 (permalink)  
Will Fraser
 
Join Date: Apr 2009
Location: Petaluma
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I don't remember seeing on thread this:

From the skid mark on the Runway surface just before leaving, the nose (single) stripe indicates a fully castered pair of tires (wheels) scrubbing at some angle off line, even close to ninety degrees.

From CVR: 'Snap, Snap'. The nose gear is directly under and between the pilots, was this noise the cables parting ?

Signs of wear on the wires, are other pilots overdoing tillering ? The radius of the nose tire scrubs is decreasing, indicating an increasingly tighter turn to the left. An accelerated turn shows the inability of controls to correct the track.

With all due respect, the Rudder traces don't jive with what is expected to arrest the decrease in heading in a crosswind TO. The nose should be light or neutral above 80 knots, but as the nose skid shows, there was some weight on the gear. The Reject call happened after leaving pavement? The lack of braking rubber affirms that, the main's mark is "skid" induced, not brake marks. Ineffective use of Rudder? Late RTO call?
Inappropriate Tillering? Mx issues with NG? Exceeded Xwind Limit? Microburst?

Lots of food for thought.
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