Unknown Alarm !

[badderjet 181]

http://en.wikipedia....ways_Flight_522 Some good reading for you.

Well thanks, I know that one however... Interesting for anyone I suppose...?

[Spin737 102]

Well thanks, I know that one however... Interesting for anyone I suppose...?

I have the same problem . . . it is the same sound you get while on the ground. . .press the horn button on overhead to silence it

Frits1992 was describing the Alt Warn Horn. You told him how to correct a T/O Config Horn. Kinda like what Hans-Jürgen Merten was trying to do before he got really sleepy for some reason.

[Godfrey 0]

The master warning light will be illuminated while any door is open at any time.

You're right NGX, the yellow caution light did illuminate a couple of times, now that I recall but, finding no issues reported, I just switched it off, Silly, I know !! But the question still remains that, as realistic as PMDG made this 737, there are still remaing weird quirks, probably not much but weird nevertheless. What I mean is this, in TRW, would it be possible to take a 737-800 to an altitude of FL310 with a door open ? I know that depressurization would render unconscious and probably kill all of my passengers(PHEW!!! ), but, please prove me wrong and say that 'yes, it is strucurally possinle. Please prove that I , and not PMDG's product, is guilty of having 'weird quirks GodfreyG

[badderjet 181]

I have the same problem, It is the same sound you geth while on the ground and you you advance the throttles to far, without the t/o config set My solution is: press the horn button on overhead to silence it Regards, Frits

Frits1992 was describing the Alt Warn Horn. You told him how to correct a T/O Config Horn. Kinda like what Hans-Jürgen Merten was trying to do before he got really sleepy for some reason.

Whatever man. I just had a major epiphany and I think I know where the problem lies now. In my sleep deprived state of mind I was misreading frits1992's first words as "I get the same sound while on ground... blablabla", so that's why I thought I needed to educate him on how to get rid of that. Case closed I guess.

[Spin737 102]

t I needed to educate him on how to get rid of that. Case closed I guess.

Yeah, punching the button on the overhead and continuing after a horn scares me, too! Yiikes!

[Foghorn 4]

"in TRW, would it be possible to take a 737-800 to an altitude of FL310 with a door open?"

I'd be having a stern word to the cabin crew if it happened. They should have noticed if only for excessive air conditioning......

[NGX 1]

I'd be having a stern word to the cabin crew if it happened. They should have noticed if only for excessive air conditioning......

Maybe it was hot that day and wanted a breeze?

[Ceri Hurlow 17]

Guys, I addressed you all as "fellow pilots", but now, I feel like an overgrown 'A--' ,certainly not a pilot ! This is exactly what I did twinturbo99, I left the pax door opened ! I saved this flight at the initial stage so as to be able to do it again and, upon checking, I found that I did open the left front pax door !!! How idotic could I have been. Anyways, thanks for all your answers and helpful suggestions. This gives rise to another question though, how would it be possible to takeoff and climb to the initial alt. of 6,000ft without any door alarms sounding ??? Yes, I did not follow a full blown before and after takeoff checklist, Guilty !!!, but there should be some config alarms sounding as soon as I start my takeoff roll, shouldn't there ?? As a matter of fact, I was at cruise alt. of FL310 for a few minutes before the alarms ceased !! That's not possible, is it ?? Thanks again for your input pilots, I left out the "fellow" part this time GodfreyG

Hey Goddrey, I only guess because i did the same myself and probably finished off a a passenger or two. Also i took the virtual bulb out of my master caution light to stop it going off so often! Good luck

[Godfrey 0]

Hey Goddrey, I only guess because i did the same myself and probably finished off a a passenger or two. Also i took the virtual bulb out of my master caution light to stop it going off so often! Good luck

' , That's a good 'un twinturbo99, I switched it off a few times but you took out the 'virtual bulb' OK, let us forget the laughs for a moment and consider this seriously! (No NGX, it wasn't a Hot day!!!) If we were to exclude passengers, and not pressurise the pax. cabin, would it realistically be possible to take a 737-800 up to FL310 with a door open ? Wouldn't the fact that a door is open prevent an aircraft such as this is from reaching that high ? Oh, and Bundy Bear, thanks for reminding me, when they (the cabin crew) recover from the coma they are in, I'll be sure to ask them GodfreyG

[Godfrey 0]

If we were to exclude passengers, and not pressurise the pax. cabin, would it realistically be possible to take a 737-800 up to FL310 with a door open ? Wouldn't the fact that a door is open preventan aircraft such as this is from reaching that high ? I know I made a mistake and 'virtually killed' a few 'virtual passengers' but please forgive me, I promise to go through all of my 'checklists' henceforth ! Could someone knowledgeable please answer my question;-"Is it possible to take a 737-800 up to FL310 with a door opened ? " GodfreyG

[dotChuckles 0]

I would have thought the door would have slammed shut in the airflow, or ripped off. Some years ago a DC-10 was brought down by a cargo door coming open in flight.

[dazz 69]

I would have thought the door would have slammed shut in the airflow, or ripped off. Some years ago a DC-10 was brought down by a cargo door coming open in flight.

But that was an explosive decompression, wasn't it? A different scenario I guess

[dotChuckles 0]

But that was an explosive decompression, wasn't it? A different scenario I guess

Yes, caused I believe by a faulty overlock latch mechanism which allowed the door to open in flight. Bear with me I am working from memory here... the resultant collapse of the cabin floor into the rear cargo area severed control and hydraulics to the tail section ultimately causing loss of crew and vehicle in one case and an emergency landing in another, however in both accidents, the door immediately separated from the airframe upon exposure to the airflow. Now in the 737, if you went from a standing start I would imagine somewhere around 50 or 60KIAS the door would rapidly swing shut from the forward facing open position due to airflow in between the door and the fuselage. I would also hazard that this would probably completely wreck the hinges, and as it's a plug type door wouldn't latch and would probably then come off. Most likely impacting something important further down the airframe along it's trajectory. If you had made it past rotation at that point I would also speculate that departure from controlled flight would result from a heavy impact in the leading edge of the wing. Complete speculation on my part though... but I still don't think it's something you'd want to try just for yuks! If you landed it you'd have an awful lot of explaining to do... no-one likes taxing in a bent aircraft.

[Godfrey 0]

But that was an explosive decompression, wasn't it? A different scenario I guess

You are right dazz, it was and that I can understand, the sudden change in pressure and all.....! But, with the door already opened and therefore the pressure inside and out being equal, would an airliner such as the 737, 747, MD-11, A320 etc., be able to make it all the way to 31,000ft without problems ? That for me is the Big question. I would love to hear from some of our more experienced and knowledgeable colleagues in 'flight' Of course the crew would either have to be locked in a pressurized cockpit or else wearing oxygen masks to be able to continue flying. GodfreyG

[dazz 69]

You are right dazz, it was and that I can understand, the sudden change in pressure and all.....! But, with the door already opened and therefore the pressure inside and out being equal, would an airliner such as the 737, 747, MD-11, A320 etc., be able to make it all the way to 31,000ft without problems ? That for me is the Big question. I would love to hear from some of our more experienced and knowledgeable colleagues in 'flight' Of course the crew would either have to be locked in a pressurized cockpit or else wearing oxygen masks to be able to continue flying. GodfreyG

I have no idea but I wouldn't worry too much. In the unlikely event that both pilots disregarded all the alarms, I would assume some flight attendant would let them know what's going on. So I won't blame any developer for not simulating the effects of flying with the doors open at FL310 hehe. I remember a thread where someone in the PMDG team said that the NGX is not a "crash simulator" Anyway I think it would be cool to have hypoxia simulated, something like starting to get blurry vision at a certain altitude and slowly end in a black out, maybe we could reach out for the oxigen masks and get our vision back to start an emergency descent to 10000ft. Probably a bit "gamish" I don't know