Airline Pilot Central Forums
1  2  3  4  5  6  7  8 
Page 4 of 8
Go to

Airline Pilot Central Forums (https://www.airlinepilotforums.com/)
-   Regional (https://www.airlinepilotforums.com/regional/)
-   -   Type 4 on the upper fusalege of the CRJ... (https://www.airlinepilotforums.com/regional/86706-type-4-upper-fusalege-crj.html)

Captain Tony 02-28-2015 07:06 AM

I'm not aware of this requirement at ASA. Is this a -200 only thing?

Why do you need to take off unpressurized?

In the -700/900 it doesn't matter what deice/anti ice we use or where, it's just a 20 second engine run up, then turn the bleeds back on, packs a min later and normal ops.

Larry in TN 02-28-2015 07:24 AM

Quote:

Originally Posted by Captain Tony (Post 1833929)
I'm not aware of this requirement at ASA. Is this a -200 only thing?

Why do you need to take off unpressurized?

On the -200, if wing A/I is used on takeoff (or landing) then the PACKs can not be on the engine (10th stage) bleed. Normally you would do this by transferring the PACKs to APU bleed. With Type IV on the fuselage you can't run the APU as the APU air door is right on top and would scoop up all the Type IV as it was shearing off during takeoff. That leaves with with an pressurized takeoff.

The bleed system was significantly changed, and improved, on the -700/900.

Dunkin 02-28-2015 10:11 AM

Quote:

Originally Posted by Captain Tony (Post 1833929)
I'm not aware of this requirement at ASA. Is this a -200 only thing?

Why do you need to take off unpressurized?

In the -700/900 it doesn't matter what deice/anti ice we use or where, it's just a 20 second engine run up, then turn the bleeds back on, packs a min later and normal ops.

You should bid ATL CR2 captain so you can experience the fun for yourself.

trip 02-28-2015 02:45 PM

It's a goat rope combi of checklists and some things not in the checklists on the 200, not user friendly. Good chance your going to screw it up.

Speedbird2263 03-01-2015 06:27 AM

Quote:

Originally Posted by Justdoinmyjob (Post 1833814)
Packs off take offs are no big deal. Been doing them for years in a 767. Course, it's a Boeing so things just work.:D

On my first 767-300 Jumpseat I experienced that. I've never seen it while Jumpseating on the 757, so I thought it to be unusual. I do remember that, that particular 767 was a fairly rare GE engined aircraft as opposed to having PWs like most of the fleet, so I don't know if that had anything to do with it.

-2263

GravyRobber 03-01-2015 04:23 PM

Quote:

Originally Posted by Bassman1985 (Post 1833920)
All this whining about no-bleed takeoffs makes me laugh. Spent years flying 1900s and Saabs, always did bleeds-off in the 1900 until 400' AGL, and the Saab was frequently bleeds-off until 1000' AGL. You want to talk about ears popping? Even with the bleeds both on and working, you still had to yawn or chew gum all the way up and down on the Beech.

Even on the 145, packs-off takeoffs in ice are normal. APU shut down, engine bleeds open, packs off is the normal config for icing takeoff. And it's full-body for both 1 and 4, no half-measures. Just glad I'm not paying the bill for fluids!

...but no CRJ200 in that prior experience, so you aren't aware of what a Charlie Foxtrot an unpressurized takeoff really is like. If it were as simple as pushing 2 pack buttons, I don't think anybody would be complaining. Unfortunately for the CRJ pilots, it's a QRH procedure that includes pressing the EMER DEPRESS button (remember to confirm that guarded switch), closing bleeds, turning off packs, and opening the RAM AIR (remember to confirm that guarded switch).

The problem is that it's a heads down procedure for the PM in a very critical phase of flight, that requires the attention of the PF (confirming the guarded buttons) and the use of a clunky, torn up QRH. Sure, it's doable, but it SIGNIFICANTLY reduces the SA of the PM, which reduces overall safety in a critical phase of flight.

ClickClickBoom 03-01-2015 04:31 PM

Rescinded, breathe!

GravyRobber 03-01-2015 06:34 PM

I love it when common sense wins! (A rare victory).

Nevets 03-01-2015 06:39 PM

I've seen guys shut down the APU before de-icing/anti-icing and then a few minutes after fluid application is complete, restarting the APU. Maybe that's something that can be done on the CRJ without as much trouble as an unpressurized take off sounds like it is.

mooney 03-01-2015 06:45 PM

Quote:

Originally Posted by Nevets (Post 1835041)
I've seen guys shut down the APU before de-icing/anti-icing and then a few minutes after fluid application is complete, restarting the APU. Maybe that's something that can be done on the CRJ without as much trouble as an unpressurized take off sounds like it is.

It is something that is almost always done in a normal de/anti icing. Not when you have a full upper fuselage of type 4 waiting to enter a perfectly positioned apu intake door.


All times are GMT -8. The time now is 03:15 PM.
1  2  3  4  5  6  7  8 
Page 4 of 8
Go to


User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons

Copyright © 2024 DragonByte Technologies Ltd.

Website Copyright ©2000 - 2017 MH Sub I, LLC dba Internet Brands