cpos
Posts: 28
Joined: Fri Feb 24, 2006 3:22 am

N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 5:29 am

Last month I was on a DL Shuttle flight from BOS to LGA. Prior to pushback, the cabin filled with what looked and smelled like steam from the AC. We evacuated the a/c without incident. The crew did a great job keeping everyone calm. The 50 or so passengers all exited through the jetway as we still had not finished our pushback.

Anyway, I have two questions.....

1) The captain came out to the gate and explained that in his years of flying the MD-88, he's never seen this happen. I guess some of the "Packs" in the air conditioning unit malfunctioned. This was the first flight out for this aircraft on that morning. They tryed restarting the engines and encountered the same results. Can someone please explain what he ment by "Packs."

2) Secondly, does anyone know where this plane is now. It was taken out of service at that point. I have flown three shuttle round trips since then and have not seen the aircraft in the rotation. N910DE.
 
bucky707
Posts: 954
Joined: Sat Aug 19, 2000 2:01 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 5:54 am

Quoting Cpos (Thread starter):
Can someone please explain what he ment by "Packs."

the packs are air conditioning packs, a unit which takes bleed air off the engines, compresses it, then expands it, which causes cooling. This is the air which is pumped into the cabin to keep it cool and to pressurize. If it is too cold, bleed air direct from the engines is mixed in to warm up air supplied to the cabin.
 
wjcandee
Posts: 5124
Joined: Mon Jun 05, 2000 12:50 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 6:07 am

Curious. I don't know why you would evacuate. If it looked like "steam" -- i.e. it came in with the force of a teakettle and dissapated quickly -- I have seen this literally fifty times in aircraft, including many times in the MD80. It happens (as does fog) when cold, dry air is blown into an environment of warm, moist air -- as it does when you open your fridge sometimes.

If it didn't dissipate, and instead filled the cabin with lingering, smoky, fog, then it could be the result of the ingestion by the a/c system of deicing fluid.

In any event, there was likely nothing substantially wrong with the aircraft.

Another decent civilian word as a definition of "air conditioning packs" is "heat exchanger". Same principle as that thing in the back of your refrigerator, but different design.

[Edited 2006-02-23 22:09:06]
 
MD88Captain
Posts: 1224
Joined: Wed Nov 14, 2001 9:50 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 6:08 am

Pnematic Air Compressor System. Or something like that. I've had them fill the cabin with "fog" in high humidity conditions and I've had them send smoke if they overheat. That happened on the 727 all the time and on the MD88 very infequently - But it has happened to me.
 
cpos
Posts: 28
Joined: Fri Feb 24, 2006 3:22 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 6:30 am

This was definately not just a fog. I was sitting in the second row and when I stood up, I could not see the back of the aircraft.
 
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viasa
Posts: 1424
Joined: Sat Jun 18, 2005 10:29 pm

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 6:48 am

This three MD-88 wear now Delta Shuttle titels: N908DE, N910DE and N915DE
 
SESGDL
Posts: 2611
Joined: Sat Jan 13, 2001 6:25 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 7:56 am

Quoting Viasa (Reply 5):
This three MD-88 wear now Delta Shuttle titels: N908DE, N910DE and N915DE

Sorry, there are more than that though. There MD-88s wear Shuttle titles now:

N908DE
N910DE
N911DE
N913DE
N914DE
N915DE

There may very well be more, but these are the ones that I have seen pictures of. Can anyone from DL help out? Are N909DE and N912DE also in Shuttle colors now?

Jeremy
 
tinpusher007
Posts: 887
Joined: Wed Feb 09, 2005 2:03 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 1:13 pm

Quoting Bucky707 (Reply 1):
the packs are air conditioning packs, a unit which takes bleed air off the engines, compresses it, then expands it, which causes cooling. This is the air which is pumped into the cabin to keep it cool and to pressurize. If it is too cold, bleed air direct from the engines is mixed in to warm up air supplied to the cabin.



Quoting MD88Captain (Reply 3):
Pnematic Air Compressor System.

Yea...shouldn't PACKS actually be PACS for Pneumatic Air Conditioning System? This was always my understanding of that acronym.
"Flying isn't inherently dangerous...but very unforgiving of carelessness, incapacity or neglect."
 
wjcandee
Posts: 5124
Joined: Mon Jun 05, 2000 12:50 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 2:44 pm

Quoting TinPusher007 (Reply 7):
Yea...shouldn't PACKS actually be PACS for Pneumatic Air Conditioning System? This was always my understanding of that acronym.

My 767 Flight Handbook calls them "packs" all the way through. The indicator lights above the "Pack Control Selectors" on the 757/767 overhead panels say "Pack Off". The handbook describes "packs" as "air cycle machines".

So...regardless of where the term came from initially, Boeing seems to regard the present-day term as "Pack".
 
deltal1011man
Posts: 4541
Joined: Mon Sep 19, 2005 9:17 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 2:51 pm

jeremy, i have the list of everything sent to me from DL TOC but its old (its show the 733 shuttles) but if i can ill see if my freind can tell me P.S. if anyone wants the list i can send it to you
New airliners.net web site sucks.
 
SESGDL
Posts: 2611
Joined: Sat Jan 13, 2001 6:25 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 3:29 pm

Quoting DeltaL1011man (Reply 9):
jeremy, i have the list of everything sent to me from DL TOC but its old (its show the 733 shuttles) but if i can ill see if my freind can tell me P.S. if anyone wants the list i can send it to you

That would be great, thank you! If you need it, my email is j73198@yahoo.com

Thank you,

Jeremy
 
cvg2lga
Posts: 425
Joined: Fri Feb 25, 2005 11:48 am

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 3:51 pm

Quoting SESGDL (Reply 6):
There may very well be more, but these are the ones that I have seen pictures of. Can anyone from DL help out? Are N909DE and N912DE also in Shuttle colors now?

N912DE is in shuttle scheme, I snapped a foto of it at CVG one day at work. I just thought it was neat to see that and hadn't heard about the conversion yet. Also later when I got on board it on the right side of the aircraft opposite of the rear galley all the seats were gone? I would think they were making on the dare I say it MRTC idea. Any ideas as to why the seats were gone? Also this was a regular ops out of CVG could you imagine telling the 8-12 pax, sorry we literally don't have seats for you? Or "You are seated in the hangar sir...we apologize for that.
Tchau
DA-
They don't call em' emergencies anymore. They call em' Patronies.
 
LH744
Posts: 237
Joined: Thu Oct 11, 2001 8:26 pm

RE: N910DE - Delta Shuttle MD-88

Fri Feb 24, 2006 11:27 pm

Hi,

N910DE is back shuttling between LGA and DCA, today recently
as flight DL 1940!

Cheers,

LH744
 
cvg2lga
Posts: 425
Joined: Fri Feb 25, 2005 11:48 am

RE: N910DE - Delta Shuttle MD-88

Sat Feb 25, 2006 11:33 am

Hey I saw this at work today DL N398DA is still in shuttle scheme. Can anyone tell me when they pulled the 738's off shuttle? How long would it take to schedule this in for a repaint?
Tchau
DA-
They don't call em' emergencies anymore. They call em' Patronies.
 
Dalmd88
Posts: 2390
Joined: Fri Jul 28, 2000 3:19 am

RE: N910DE - Delta Shuttle MD-88

Sat Feb 25, 2006 5:35 pm

All of the ex shuttle 738 are currently being moded with first class and the titles are being changed. It takes about four days to do it. The paint part only takes a few hours. They just paint over the old ones with a roller and then mask it and paint the new title.

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