B757 - 200 SF/PCF main deck fire suppression
Greetings everyone !
My first post on pprune.
I have two questions on the B757-200 freighter.
1. Why is the right recirculation fan removed from the 757-200 freighter ?
(Is it because of the very low volume of space between the main deck and the cargo pallets, which does not necessitate a recirculation fan ?)
2. The 757 -200 PCF (Precision conversion freighter ?) has a non normal checklist for MAIN DECK fire (Main Cargo Fire) and a separate one for the forward and aft cargo holds. (Cargo Fire)
Whereas, the 757-200 SF (the ones used by DHL, which were earlier passenger aircraft in British Airways fleet), have a common non normal checklist/drill for the Main Deck and the Fwd/Aft Cargo compartments.
In this case, the Left Recirc fan shuts off, one pack is turned off and other pack is commanded to Low Flow and cabin gradually depressurized to aircraft altitude.
Why is that so ?
Thanks