FORT WORTH, Texas - American Airlines today said that it has secured the cockpits of its entire fleet of jet aircraft. In just over three weeks, the world’s largest airline manufactured and installed cockpit security devices on its nearly 900 jet aircraft. The company’ s fleet includes 712 aircraft at American and 167 at TWA.

American began manufacturing and installing the security systems immediately after receiving approval from the Federal Aviation Administration. The new locking devices prevent intruders from accessing the cockpit by securing it from the inside.

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