Новости от FAA и EASA , насколько я понял проблемой надежности датчиков АОА озабочены уже не один год:
Regulators on both side of the Atlantic have for several years have been grappling with angle-of-attack sensor issues. The FAA, in 2013, proposed a safety directive mandating inspection and possible replacement of angle-of-attack sensors affecting a total of more than 1, 000 747 jumbo jets and older 737 models. The agency determined malfunctioning sensors could result in false stall warnings to pilots during takeoffs.
The same year, authorities issued safety directives mandating emergency pilot responses to ensure that failures of the same type of sensors on long-range Airbus SE (AIR.FR) A330 and A340 models didn't result in an uncontrolled dive.
The following year, the European Aviation Safety Agency issued an emergency order revising certain cockpit procedures to deal with blocked angle-of-attack sensors on thousands of Airbus wide-body and narrow-body jets. And just last month, U.S. regulators increased the number of Airbus A319 and A320 models included in a different safety directive also focused on the dangers of blocked sensors.
Mr. Ky said "we worked a lot with Airbus on how robust the machine should be when you have false sensor information and how do you allow the pilots to take over." That experience is now being shared with the FAA, he said.
These type of highly technical information exchanges are typical after any accident where potential equipment problems are being investigated, he said. "We help each other."
Crash investigators have not concluded why the plane crashed. Boeing and Lion Air have said they are supporting the probe.
The Boeing 737 plane involved in the accident suffered problems with its angle-of-attack measurements in several prior flights. Efforts by the airline to fix the problem, including by replacing a sensor, apparently failed, according to accident investigators.
One of the topics being addressed between EASA and the FAA, Mr Ky said, is what actions to recommend to plane designers and crews in order to deal with such failures.
Mr. Ky played down safety concerns about Indonesia even though the European Union only this year removed the country from an aviation safety blacklist after more than a decade.
"Accidents can happen to the best. I don't think we should blame Indonesia, " Mr. Ky said. None of the information that has come to light since the crash warrants returning Indonesia to the blacklist that would effectively bar carriers from the country to fly into the EU.
Write to Robert Wall at
Robert.Wall@wsj.com
Dow Jones Newswires
December 05, 2018 12:22 ET (17:22 GMT)
http://news.morningstar.com/al ...