Originally Posted by
SASless
If there are multiple systems that can trigger the symptoms that are presented to the crew.....is there a method to work down through some sort of Trouble Shooting Tree to correctly identify the culprit causing the problem? {snip the rest}
@SAS The points you raise (good ones) were the topics of a hell of a lot of discussion in our Wing. What was found out was that the NATOPS manual / training wasn't crystal clear on some important details. (The final tech fix to prevent the mechanical failure ended up being some bolts in the azimuth and new preflight check procedures). The NATOPS manual changed, and the control system malfunction procedures were revised to address the distinct differences in symptoms: control position errors versus other system errors. The former became "shut it down" in nature once that accident was thoroughly understood.
NATOPS was written/rewritten in blood ... again .. thanks to a one of a kind failure. Sorry that we are drifting form the S-92 topic, but flight control degradation malfunctions and emergencies are the ones that give me the chills. The initial report from the AIIB gets the hair up on the back of my neck.