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BA 777 "lands short" at Heathrow
- Thread starter earhart
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Rez O. Lewshun
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- Jan 19, 2004
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The 787 was to have a side stick, but the old school Boeing Yoke mules insisted on eating out of thier lap...
Enjoy that classic jurassic.....
Just call me a proud "yoke mule!"
Rez O. Lewshun
Save the Profession
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- Jan 19, 2004
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This oughta be goodWhat kind of sound does a yoke mule make?
- I don't know, what sound does he make?legalalien
Well-known member
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- Jun 16, 2002
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- 139
That email has already been discredited. It did the rounds in the UK a few weeks ago. Gordon Brown was already onboard his plane which was taxing out when the BA 777 came in.
Unless somehow his motorcade got from the perimeter road, he got onto the aircraft and it pushed back in the time that it takes to glide in a 777!
Unless somehow his motorcade got from the perimeter road, he got onto the aircraft and it pushed back in the time that it takes to glide in a 777!
Rez O. Lewshun
Save the Profession
- Joined
- Jan 19, 2004
- Posts
- 13,422
This oughta be good
Probably similiar to the sound a B717 pilot makes who realizes that the oil from his pizza has stained his uniform pants in the most embarrassing location cause he was eating off his lap....
Love the yoke!
Or similiar to the sound a USAPA pilot makes when he gets assesed AGAIN and the Nic award stands
regionaltard
seat lock
- Joined
- May 22, 2005
- Posts
- 951
What kind of sound does a yoke mule make?
It goes: Rah rah rah, sis boom bah, goooooo ALPA!
Ice Caused Hard Landing at LHR
Sep 4, 12:20 PM EDT
UK report says ice caused hard landing at Heathrow
By ROBERT BARR
Associated Press Writer
LONDON (AP) -- Ice in fuel lines probably caused a British Airways jet to lose power and make a jarring emergency landing in London in January, investigators said Thursday.
The Air Accident Investigation Branch said the problem was unprecedented on any large modern aircraft, and it urged U.S. and European regulators to investigate what could be done to prevent a repeat.
Nineteen people suffered minor injuries when the British Airways Boeing 777 made a crash landing a thousand feet (300 meters) short of the runway on Jan. 17.
Investigators from the Air Accident Investigations Branch said that water, which is normally present in aircraft fuel, may have frozen because of unusually cold weather on a flight from Beijing to London on Jan. 17.
"Although the exact mechanism in which the ice has caused the restriction is still unknown in detail, it has been proven that ice could cause a restriction in the fuel feed system," the report said.
"The risk of recurrence needs to be addressed in the short term whilst the investigation continues."
The report called for the Federal Aviation Administration and the European Aviation Safety Agency to work with Boeing and Rolls-Royce, maker of the plane's Trent 800 engines, to develop measures to reduce the risk of ice forming.
The report also recommended that the regulators review certification requirements to insure that fuel systems can cope with the possible accumulation and sudden release of ice.
Regulators, however, would be heading into unexplored territory.
"Extensive data analysis has revealed that not only has there never been a previous occurrence of this type on the Boeing 777, but also that this is the first known occurrence of this nature in any large modern transport aircraft," the Air Accident Investigation Branch said.
The flight had been uneventful until its final approach into Heathrow. The problem developed when the plane was at a height of 720 feet (220 meters), at which point power dropped in the right engine and, seven seconds later, in the left engine as well, the report said. That was consistent with a drop in the fuel flow, it said.
The Trent 800 engines have fuel oil heat exchangers that cool engine lubricating oil and warm fuel to prevent the formation of ice, the agency said.
However, there are no regulatory requirements that address the possibility of a sudden release of ice in large quantities, which might disrupt fuel flow.
"Water is always present, to some extent, in aircraft fuel systems and can be introduced during refueling or by condensation from moist air which has entered the fuel tanks through the tank vent system," the report said.
Water can be dissolved in the fuel, particles can be suspended in the fuel or free water in the form of drops or puddles can be present.
Ice crystals start to form when the fuel temperature dips to -1 to -3 Celsius (31-27 Fahrenheit), but generally remain suspended as discrete particles, the report said. At -18 Celsius (0 Fahrenheit) the crystals can stick to each other and form clumps.
"Below this temperature little is known about the properties of ice crystals in fuel and further research may be required to enable the aviation industry to understand this behavior," the report said.
Investigators reported "limited success" in trying to replicate an ice buildup in fuel with normal amounts of water, but have succeeded in interrupting fuel flows through the fuel oil heat exchanger by injecting large amounts of water into the fuel.
There was no evidence, the investigators said, that the amount of water in the British Airways plane's fuel was excessive.
The National Transportation Safety Board in Washington said in a statement Thursday that it supports the recommendations made by the British aviation safety agency to prevent similar accidents involving the Boeing 777.
The recommendations "show how international cooperation can lead to safety improvements that benefit the aviation community worldwide," NTSB acting chairman Mark Rosenker said.
The European Aviation Safety Agency said it had agreed to work with the FAA to require further measures on Boeing 777s using the Trent 800 engine.
British Airways, which operates 15 Boeing 777s with the Trent engines, noted in a statement that this was not the final report, and that the Air Accident Investigation Branch had made no recommendations relating specifically to its fleet.
"We will work closely with the relevant regulatory authorities and will comply with any requirements issued to all operators of Boeing 777s powered by Rolls-Royce Trent 800 engines," British Airways said.
Sep 4, 12:20 PM EDT
UK report says ice caused hard landing at Heathrow
By ROBERT BARR
Associated Press Writer
LONDON (AP) -- Ice in fuel lines probably caused a British Airways jet to lose power and make a jarring emergency landing in London in January, investigators said Thursday.
The Air Accident Investigation Branch said the problem was unprecedented on any large modern aircraft, and it urged U.S. and European regulators to investigate what could be done to prevent a repeat.
Nineteen people suffered minor injuries when the British Airways Boeing 777 made a crash landing a thousand feet (300 meters) short of the runway on Jan. 17.
Investigators from the Air Accident Investigations Branch said that water, which is normally present in aircraft fuel, may have frozen because of unusually cold weather on a flight from Beijing to London on Jan. 17.
"Although the exact mechanism in which the ice has caused the restriction is still unknown in detail, it has been proven that ice could cause a restriction in the fuel feed system," the report said.
"The risk of recurrence needs to be addressed in the short term whilst the investigation continues."
The report called for the Federal Aviation Administration and the European Aviation Safety Agency to work with Boeing and Rolls-Royce, maker of the plane's Trent 800 engines, to develop measures to reduce the risk of ice forming.
The report also recommended that the regulators review certification requirements to insure that fuel systems can cope with the possible accumulation and sudden release of ice.
Regulators, however, would be heading into unexplored territory.
"Extensive data analysis has revealed that not only has there never been a previous occurrence of this type on the Boeing 777, but also that this is the first known occurrence of this nature in any large modern transport aircraft," the Air Accident Investigation Branch said.
The flight had been uneventful until its final approach into Heathrow. The problem developed when the plane was at a height of 720 feet (220 meters), at which point power dropped in the right engine and, seven seconds later, in the left engine as well, the report said. That was consistent with a drop in the fuel flow, it said.
The Trent 800 engines have fuel oil heat exchangers that cool engine lubricating oil and warm fuel to prevent the formation of ice, the agency said.
However, there are no regulatory requirements that address the possibility of a sudden release of ice in large quantities, which might disrupt fuel flow.
"Water is always present, to some extent, in aircraft fuel systems and can be introduced during refueling or by condensation from moist air which has entered the fuel tanks through the tank vent system," the report said.
Water can be dissolved in the fuel, particles can be suspended in the fuel or free water in the form of drops or puddles can be present.
Ice crystals start to form when the fuel temperature dips to -1 to -3 Celsius (31-27 Fahrenheit), but generally remain suspended as discrete particles, the report said. At -18 Celsius (0 Fahrenheit) the crystals can stick to each other and form clumps.
"Below this temperature little is known about the properties of ice crystals in fuel and further research may be required to enable the aviation industry to understand this behavior," the report said.
Investigators reported "limited success" in trying to replicate an ice buildup in fuel with normal amounts of water, but have succeeded in interrupting fuel flows through the fuel oil heat exchanger by injecting large amounts of water into the fuel.
There was no evidence, the investigators said, that the amount of water in the British Airways plane's fuel was excessive.
The National Transportation Safety Board in Washington said in a statement Thursday that it supports the recommendations made by the British aviation safety agency to prevent similar accidents involving the Boeing 777.
The recommendations "show how international cooperation can lead to safety improvements that benefit the aviation community worldwide," NTSB acting chairman Mark Rosenker said.
The European Aviation Safety Agency said it had agreed to work with the FAA to require further measures on Boeing 777s using the Trent 800 engine.
British Airways, which operates 15 Boeing 777s with the Trent engines, noted in a statement that this was not the final report, and that the Air Accident Investigation Branch had made no recommendations relating specifically to its fleet.
"We will work closely with the relevant regulatory authorities and will comply with any requirements issued to all operators of Boeing 777s powered by Rolls-Royce Trent 800 engines," British Airways said.
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