PPRuNe Forums - View Single Post - CAL 747 takes off with improperly closed door.
Old 29th Dec 2007, 13:20
  #18 (permalink)  
IGh
 
Join Date: May 2007
Location: Castlegar
Posts: 255
Likes: 0
Received 0 Likes on 0 Posts
Fire -Smoke Procedures FAA vs Non FAA

Question posed just above:
"... what is the relevance ... discussing open doors in flight on a 747 ... with the fact that a similar procedure was not FAA approved on the DC-9...."

Studying various mishaps (since the fire aboard the "Star of Lisbon" in July 1946), one learns about the evolution of procedures against hidden fires, and one learns about the major design-weakness that forces the suggestion that we open DOORs (or hatches or Cockpit Windows) to help REMOVE SMOKE from the CABIN during the typical hidden-fire. [That design-weakness is the positioning of the Outflow Valve below the Cabin Floor, with no other smoke-chute to vent hot smoke from the ceiling-crown area.]

So, attempting to gather some more information, I posed the finding from an earlier investigation regarding the use of DOORS in the SMOKE REMOVAL checklist. [Now Juud, is there an ignore-list for this forum? Please, add me to your ignore-list, so you needn't be offended in future.]
IGh is offline