Sunday, July 14, 2013

Stick Shaker Warning

Asiana 214, respectably unknown info:
Stick Shaker

I was reviewing some info given by the NTSB Chairman Deborah Hersman, based on the Asiana 214 landing crash. The pilots got a stick shaker alarm 4 seconds before impact, crazy, the stick shaker came 4 seconds before impact. I know how the stick shaker works, and is not fun to see it go off, specially in low altitudes. The stick shaker is a shake movement alert that the yoke/ the flying control handle makes, pilots have their hands in the yoke, the yoke makes their hands vibrate and if active too, a voice command saying "stall"  will be heard along, and a warning, master caution light. It all means that the plane is about  to go into a stall. It's an eye opening sense of feeling, the heart starts to beat a bit faster. In the Asian 214 case, the stall was approaching, the triple seven was falling out of the sky and the stick shaker alarm went off to aid/help the pilots avoid hitting terrain. So they had all this terrible things happening in the last seconds with the PAPIs, the increase speed call, the stick shaker, and the pressure to execute a go-around.
 Asiana  214 will always stay in my mind. My favorite airport, my favorite air traffic control, KSFO. .The Boeing  777 which had kept a clean passenger fatality tittle, until now.