On 29th November, 2017, Airblue flight ABQ 200, Airbus 321 aircraft, Reg. No. AP-BMW was operating from Jinnah International Airport (JIAP), Karachi (OPKC) to Benazir Bhutto International Airport (BBIAP), Islamabad (OPRN) on route Karachi – Airway J112 – MOLTA – Airway J142 – MATIN – Airway J121 – Islamabad. Pakistan International Airlines (PIA) flight PIA 313 Airbus 320 aircraft, Reg. No. AP-BLV was operating from AIIAP, Lahore (OPLA) to JIAP, Karachi (OPKC) on route Airway J112. PIA 313 came in contact with Karachi Area Control East maintaining FL340. Karachi Area Control East passed Air Traffic Control clearance to arrival (PIA 313), which was acknowledged by PIA 313. ABQ 200 departed from Karachi at 02:30:00. While climbing FL310, ABQ 200 came in contact with Karachi Area Control East at time 02:53:00 and was asked for final requested level. Karachi Area Control East initially cleared ABQ 200 to FL310 and after confirmation of final level, re-cleared to FL350 at 02:54:00. At 03:08:20, ABQ 200 reported Traffic Alert & Collision Avoidance System – Resolution Advisory (TCAS – RA) while passing FL335↑ whereas at that time reciprocal parallel traffic PIA 313 was approximately 6.5 NM apart maintaining FL340.
