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Old 31st Oct 2016, 00:59
  #8 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
Location: Commuting not home
Age: 46
Posts: 4,321
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Eh, no, but not my point.

1) the STS shows delta V(failure). To calculate Vapp you need to take into account A/THR additive, wind correction and ice accretion. So into the QRH anyhow.

2) Real problems sometimes come in pairs, i.e. you dispatch with 1 pair of spoilers locked closed per MEL and then something ...

3) It is actually fine, but only if the malfunction plays by the rules.

It was more of a general comment aimed at the word ALWAYS. I remeber OEB for dual bleed fault and dispatching with 1 side inop - and the paper procedure was clearly not designed for such configuration. So, whenever the clever systems come to show me something, I always approach with caution and proceed further only once having verified the problem (for which a solution is being presented) is the exact one I actually have. As a computer kid, I refuse to take them at face value. One of my early SIM instructors used to say: "the travesty normally begins as people correctly execute a wrong NNC". That was 737 with a printed set in QRH, but FWC does not shield us completely from the very same trap.
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