The Civil Aviation Authority (CAA) said in a letter to the Pakistan International Airlines (PIA) that the pilot of plane which crashed in Karachi on May 22 did not follow the instructions of the air-traffic controller (ATC). On May 22, the PIA A320 plane, en route from Lahore, crashed in Karachi's densely populated Model Colony area near the city's airport, killing 97 of the 99 passengers and crewmembers on board. A teenage girl on ground also died later, reports Dawn news. The June 2 letter from CAA official Iftikhar Ahmed to the PIA safety and quality assurance department, while pointing out "non-compliance of ATC instructions" by PK-8303, asked him to "ensure avoidance of recurrence of such situation in the interest of flight safety". (IANS)