UA1536 LAX-IAD Has anyone else had a west to east transcon weight restricted on a 757
Dec 16, 2014, 4:21 pm
#16
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There is no way that the weight of four people comes anywhere near the weight of the fuel that would be burnt after flying half-way across. However, it is possible that the aircraft was so heavy that if it had to return to LAX immediately after takeover it would exceed maximum landing weight.
Dec 16, 2014, 5:54 pm
#17
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as for whether or not these 4 people will have an impact, well, of course that 780lbs will not be the full reason if a plane can land or takeoff, but there are strict guidelines of what the a/c can do and is structurally built for. If you are over by a 1lb or 1,000lb, it wont pass with the FAA.
Dec 16, 2014, 6:38 pm
#18
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Thanks, I didn't realize max landing weight could be a problem on a leg this long.
Dec 16, 2014, 11:40 pm
#19
Join Date: Dec 2009
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That sounds much more like an announcement to get the family to deplane without using the real reason for embarrassing or logistical purposes. While gross landing weight is always an issue, for a 757 to face that predicament, you would need an enormous tailwind along with a landing alternate hundreds and hundreds of miles away from Dulles to be in that situation. Only other alternative is a mechanical issue (pack inoperable for example) that would have you at a lower altitude and require a heavier fuel load. Otherwise, the 757 you can pack to the brim with people, cargo, and fuel and still go.
EDIT: Max landing weight is not taken into account for an emergency air return after take off. That would just be considered an overweight landing.
EDIT: Max landing weight is not taken into account for an emergency air return after take off. That would just be considered an overweight landing.
Dec 17, 2014, 9:17 am
#20
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That is what struck me funny for a 757 to have a weight restriction with so many empty seats, those things are a work horse.
With that said the pilot came out of the cockpit with a clipboard or ipad (I wasn't paying that close attention) after the announcement. I didn't see who he went to talk to or where, but that led me to believe the weight issue.
I could see it being a mechanical issue now that you say that, but a mechanic never went through F to the cockpit to do the paperwork or whatever they normally do. Maybe that is why the pilot left, to go talk to the mechanic. I just assumed it was the gate staff.
It all appeared to be a really last minute issue that came up within 5 minutes of the door closing. Especially since they offloaded the family or they wouldn't have put them on in the first place.
I thought there was closer to 15 standbys cleared when I looked but indeed there were only 6 that went out. Maybe they took off more people but in a much more discreet way. I couldn't see, but it is possible.
With that said the pilot came out of the cockpit with a clipboard or ipad (I wasn't paying that close attention) after the announcement. I didn't see who he went to talk to or where, but that led me to believe the weight issue.
I could see it being a mechanical issue now that you say that, but a mechanic never went through F to the cockpit to do the paperwork or whatever they normally do. Maybe that is why the pilot left, to go talk to the mechanic. I just assumed it was the gate staff.
It all appeared to be a really last minute issue that came up within 5 minutes of the door closing. Especially since they offloaded the family or they wouldn't have put them on in the first place.
I thought there was closer to 15 standbys cleared when I looked but indeed there were only 6 that went out. Maybe they took off more people but in a much more discreet way. I couldn't see, but it is possible.
That sounds much more like an announcement to get the family to deplane without using the real reason for embarrassing or logistical purposes. While gross landing weight is always an issue, for a 757 to face that predicament, you would need an enormous tailwind along with a landing alternate hundreds and hundreds of miles away from Dulles to be in that situation. Only other alternative is a mechanical issue (pack inoperable for example) that would have you at a lower altitude and require a heavier fuel load. Otherwise, the 757 you can pack to the brim with people, cargo, and fuel and still go.
EDIT: Max landing weight is not taken into account for an emergency air return after take off. That would just be considered an overweight landing.
EDIT: Max landing weight is not taken into account for an emergency air return after take off. That would just be considered an overweight landing.
Dec 17, 2014, 9:45 am
#21
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1. It could be that the particular aircraft had a problem with the fuel system. 757s have three tanks - left, center, and right. Fuel is drawn first from the center and then from the left and right. If, for whatever reason, the center tank was out-of-service, the range would be reduced by the amount of fuel carried in that tank. If, however, either then left or the right tank was out of service then the fuel would not be loaded in either side tank (tanks must be balanced) and the range would be reduced accordingly.
Dec 17, 2014, 11:25 am
#22
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