BASIP - TCAS (40-127)

Serious Incident (TCAS - RA) - Fly Dubai Flight FDB 325 B 737 and Military Aircraft on 12 July 2018

  • Type: serious incident
  • Status: FINAL INVESTIGATION REPORT
  • Operator: Fly Dubai
  • Flight no.: FDB 325
  • Registration number: A6-FGB
  • Type of aircraft: 737-800
  • Date of occurrence: 12-07-2018
  • Date of uploading: 03-06-2026
  • Location: In-flight

On 12 July 2018, Fly Dubai flight FDB325, a Boeing 737-800 aircraft, Registration No. A6-FGB, operating as a schedule passenger flight from Dubai International Airport (OMDB), Dubai, United Arab Emirates (UAE) to Multan International Airport (OPMT), Multan, Pakistan, experienced TCAS- RA (Traffic Alert and Collision Avoidance System – Resolution Advisory) during descent. The incident occurred within controlled airspace during a conflict with military aircraft recovering from the training area. Although the civil and military flights were pre-coordinated between RAPCON (Military Radar Control at OPRQ) and OPMT Tower. However, discrepancies in coordination and descent clearances between controlling units resulted in a convergence of traffic paths. Furthermore, the TCAS-RA resulted due to descend below the assigned altitude FL070 by FDB325 to FL064 overhead Multan and military traffic at FL060. In response FDB325 climbed back to FL070 to avoid the conflict and later landed safely at OPMT, without any injuries or damage. The minimum vertical separation fell below the prescribed threshold, resulting in a loss of separation; therefore, the event has been classified as a serious incident.