Re: 150 passengers on board a flight from Tehran to Yerevan feared dead
There is an Aircraft primary structures service life, specifically for pressurized passenger aircraft (cycles of pressurization…..each cycle is one take off and one landing) that work stresses the aluminum, not to mention intergranular corrosion buiding over time that may not be visible with naked eye. Some aircraft get retired to other fields of aviation or get retrofitted to extend their service life. Also more vigorous inspection procedures are implemented.
Sometimes the cost of this out weighs the profit margins of airline co. Here in US we are strictly regulated by FAA and internationally by ICAO standards. This does not exist in certain countries that are not regulated as such.
Regardless, again ………….no one should be jumping to conclusion as far as the cause of this tragic crash for there are too many variables and not enough info when it comes to maintenance records and actions, compliance with time change items, airworthiness directives, pilot currency and their actions in this flight, flight data recorder, conversation with tower, weather conditions, sabotage……it goes on and on.
Originally posted by KanadaHye
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Sometimes the cost of this out weighs the profit margins of airline co. Here in US we are strictly regulated by FAA and internationally by ICAO standards. This does not exist in certain countries that are not regulated as such.
Regardless, again ………….no one should be jumping to conclusion as far as the cause of this tragic crash for there are too many variables and not enough info when it comes to maintenance records and actions, compliance with time change items, airworthiness directives, pilot currency and their actions in this flight, flight data recorder, conversation with tower, weather conditions, sabotage……it goes on and on.
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