Levent From France, joined Sep 2004, 1718 posts, RR: 5 Posted (8 years 7 months 3 weeks 5 days 4 hours ago) and read 3044 times:
Yesterday 27 October a Japan Airlines Boeing 777 returned to Tokyo Narita after cracks appeared in one of the cockpit windows Flight 723 had 197 passengers on board and was flying to Kuala Lumpur. The cracks appeared during cruise at an altitude of 11 km in a window on the captain´s side and measured 40 to 50 cms. The plane landed safely in Tokyo and the pax were taken to Kuala Lumpur with another plane.
Levent From France, joined Sep 2004, 1718 posts, RR: 5 Reply 2, posted (8 years 7 months 3 weeks 5 days 3 hours ago) and read 3005 times:
What´s wrong with that? The plane was crusing at an altitude of 11 km (about 36,000 feet) and the cracks appeared in a window on the captain´s side. Sorry if the words aren´t in the correct order, but English is not my native language...
StudentFlyer From Australia, joined Sep 2004, 688 posts, RR: 4 Reply 3, posted (8 years 7 months 3 weeks 5 days 3 hours ago) and read 2990 times:
It happened to a QANTAS 763ER a few days ago (Sunday, Oct 24). The flight was operating from PER to CGK, and aircraft returned to PER. It wasn't in the news, but a relative of mine was in that flight.
As someone else mentioned in another thread, cracked windshield isn't an event, as far as emergency procedures are concerned.
KDTWFlyer From United States of America, joined Jun 2004, 807 posts, RR: 1 Reply 5, posted (8 years 7 months 3 weeks 4 days 15 hours ago) and read 2555 times:
Lyzzard that is an amazing picture! I read in my Concorde Story book that in August, 1994, three outter window panes of the Concorde cracked at Mach 2 and 57,000ft. with no loss of pressurisation and the inner ply was taking it all! Must have been quite a sight initially to see the windows start to crack over 10 miles up.
Greasespot From Canada, joined Apr 2004, 3054 posts, RR: 22 Reply 7, posted (8 years 7 months 3 weeks 4 days 9 hours ago) and read 2255 times:
A cracked window is almost always a result of a I a shorted out window heat. I happens all the time.....NO Big deal. The inner panels of a window are the structural part.
YOu can dispatch an airplane with a cracked window on a MEL as long as it is just he outer and it does not obstruct a pilots view. ( meaning depends on how bad a pilot wants to get home)
It does not indicate a problem with a airplane or lack of maintenance. It just means that a wire shorted out in most cases.
GS
Sometimes all you can do is look them in the eye and ask " how much did your mom drink when she was pregnant with you?"
Cessna172RG From United States of America, joined Aug 2000, 745 posts, RR: 0 Reply 8, posted (8 years 7 months 2 weeks 2 days 21 hours ago) and read 2028 times:
Is there any more information on this Qantas window blowing out the other day? Sorry to get off topic, but we are talking about window cracks and what not...
767-332ER From United States of America, joined Mar 2001, 2030 posts, RR: 11 Reply 9, posted (8 years 7 months 2 weeks 2 days 21 hours ago) and read 1984 times:
Greaspot, yes, you are correct, but also, it has to be fixed at the nearest station.
Twinjets...if one fails, work the other one twice as hard!!!
4Left From United States of America, joined Mar 2004, 81 posts, RR: 1 Reply 12, posted (8 years 7 months 2 weeks 2 days 14 hours ago) and read 1663 times:
"YOu can dispatch an airplane with a cracked window on a MEL as long as it is just he outer and it does not obstruct a pilots view. ( meaning depends on how bad a pilot wants to get home)"
What's a MEL???
Planes aren't busses, put service back into the air!
AndersNilsson From Sweden, joined May 2004, 415 posts, RR: 17 Reply 13, posted (8 years 7 months 2 weeks 2 days 13 hours ago) and read 1640 times:
What is a MEL?
A Minimum Equipment List (MEL) is a list of items that may be unserviceable on a type of aircraft under certain stated conditions such as when other identified components are operating normally and weather conditions permit. It is developed from a Master Minimum Equipment List (MMEL) which is published by a regulatory authority in consultation with the aircraft manufacturer and industry.
The MEL improves aircraft utilization without compromising safe operations and thereby provides a more convenient and economic air transportation system for the public. The MMEL includes those items of equipment related to airworthiness and operating regulations and other items of equipment that the authority finds may be inoperative and yet maintain the required level of safety by appropriate conditions and limitations. A predetermination is established, at the time the MMEL is produced, of the level of safety existing with each item unserviceable based on redundancy and probability of failure.
Cpt Underpants From Canada, joined May 2001, 166 posts, RR: 0 Reply 14, posted (8 years 7 months 2 weeks 2 days 13 hours ago) and read 1568 times:
Anders:
That's an excellent description of the MEL, maybe the best I've ever seen. I have to wonder if it is from the preamble in your company's document?? In any case, I hope you don't mind if I use it! I'm building a training program and I need a nice description.
A cracked, shattered or delaminated cockpit window is a pretty regular ocurrence, but there are many causes, which can include a failure in the anti-icing grid, a crack in a pane, a bird strike, or a delamination caused by a separation of the window layers.
I once heard that the windshield on the B757 is the toughest ever made, because when it was tested, the testers fired frozen turkeys at it, and had to beef it up some more to pass. In reality, the frozen part was unnecessary, as it's rare to run into a frozen bird at 15,000 ft! I don't know if this is true, but it makes a good story!
Whalepilot From United States of America, joined Jun 2001, 91 posts, RR: 0 Reply 16, posted (8 years 7 months 2 weeks 2 days 12 hours ago) and read 1542 times:
Those guys are lucky that the wind didn't blow that windshield in on the crew!!!
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I read in my Concorde Story book that in August, 1994, three outter window panes of the Concorde cracked at Mach 2 and 57,000ft. with no loss of pressurisation and the inner ply was taking it all! Must have been quite a sight initially to see the windows start to crack over 10 miles up.
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