Missing wheel

It was shocking to read in your esteem daily that PIA’s flight PK-306 from Karachi landed at Lahore’s Allama Iqbal International Airport without one of its wheels. This says a lot about the on-ground technical staff doing inspection of flights before departure. According to some press reports, PIA spokesperson has claimed that tire was present when the plane took off from Karachi and the aircraft made a normal landing. Why can’t the ground staff present in the tall control tower at the airport watch every outgoing and incoming flights with the help of binoculars before granting landing and takeoff permissions. This can avert major aviation accident and pilots of the aircraft can be informed of such malfunctions.
M Rafique Zakaria
Karachi