Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Communication Breakdown
Conflict NMAC
General None Reported / Taken
Procedure
Our flight had a near midair with another aircraft as we departed RPLL. Departing RPLL we were assigned to fly runway heading and climb to 7000. Just as we cleaned up the aircraft departure gave us a clearance to proceed direct to JOM and I slewed the heading bug to JOM while I programmed it into the box. The Flying Pilot just began the right turn when the near midair occurred. The near midair occurred around 5000ft; 230kts; and 8-10 miles from the extended centerline of Runway 6 with us in a 20-30 degree right bank. Since I was heads down programming the box the Pilot Flying (PF) saw the aircraft first and then I caught it just prior to it passing to our left at nearly co-altitude. I saw the position lights of the aircraft as it passed within 100 ft of us. It passed at such high speed and so close to us that I thought it might hit our left wing. As it passed by us it made an audible whooshing sound. We passed about 180 degrees out so it appears the aircraft was flying directly towards RPLL airport. We received no TCAS RA or TAs from our system and ATC never did alert us about the aircraft. I notified departure about the near miss and they seemed disinterested in the report so I reported it to them again before we switched frequencies. They were still disinterested in the report so I'm not sure if they were too busy to process the information at the time of the reports; but this needs to be investigated further as to why this near midair occurred without any warnings from ATC. Our TCAS system checked ok before and after our flight so the unidentified aircraft may not have been squawking; but ATC should have had raw returns with an aircraft this close to the airport. This is the closest I've come to being hit by another aircraft. If we hadn't turned I believe we would have collided and we would have lost an [aircraft] full of passengers and crew.
The incident occurred passing about 5000 ft; 230 kts and 8-10 miles from the airport on runway heading (Runway 06). We had just initiated a right turn direct JOM when I saw a red light out of the corner of my left eye going by us in the opposite direction at a high rate of speed accompanied with a loud whooshing sound. I estimate we passed within 100-200 feet on the left side of our aircraft at about the same altitude.
Captain of an Air Carrier jet which had just departed RPLL at night; reported a near miss with unreported traffic which did not activate a TCAS alert.