On 17th September, 2016 M/s Air Blue Flight No. ABQ271 (A321, Reg. No. AP-BMN) from Jeddah to Islamabad while descending from FL270 to FL210 at position 25 NM short of 'FATEH' reported TCAS-RA due reciprocal traffic. The reciprocal traffic was M/s Pakistan International Airline Flight No. PIA785 (B772, Reg. No. AP-BHX) from Islamabad to London, after airborne at 0449 (UTC) was climbing FL200.