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Boeing’s 777 at Risk of Fuel-Tank Explosion as US Urges Fix
Regulators are directing US operators of Boeing Co. 777 widebody jets to repair aircraft to address concerns about potential fuel-tank explosions, according to a filing Monday. A proposed airworthiness directive from the US Federal Aviation Administration calls for operators to inspect the jets and install Teflon sleeves and cap fasteners to certain parts of the center, left and right main fuel tanks, according to the filing. The order would apply to 282 aircraft, the FAA said. (www.msn.com) 기타...
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I like Boeing just wondering why Boeing did not do this when they built the triple 7. It kinda sounds like some of the problems the 787 had
They 787 has a fuel inerting system. Not sure about the triple. As far as “all the problems” with the 787, there were two battery fires due to poor QC at the Japanese battery maker YUASA. (Oddly enough, both occurred on Japanese airlines). They were fixed, no more problems…ever. In the meantime, Boeing built a stainless steel “sarcophagus” around the battery in case another runaway occurs. It hasn’t.
How about adding insulating washers to mount power distribution panel in the 87 and not realizing they insulate the ground path. Pretty sloppy engineering as in somebody overlooked fundamental current flow.
On the sarcophagus, Lithium burns at 3500 degrees, stainless melts at half that. There had to be another reason for these boxes.
Maybe the issue wasn’t discovered until the aircraft was in use for a while.
Good point. TWA 880 aircraft was 25 years old when it exploded. The oldest 777s are 27 years old. Not sure who is flying the fleet leaders.
Not trying to be insulting. Did you know everything when you were born or do you learn as you go?
