These two Fokker Friendships, 10148 & 10310, of the Hukbong Himpapawid Ng Pilipinas, had just been ferried from Ypenburg Air Force base after major overhaul, refurbishment and rebuild with Fokker Ypenburg where they had arrived in April and May 1978. 10148 crashed on 20 January 1972, was rebuild at Ypenburg and made a test flight on 11 December 1978. After customs clearance at Rotterdam airport they would continue onwards on delivery to the Philippines.