What was found
(CAN) DURING DESCENT, RIGHT ENGINE FLAME OUT, SINGLE ENGINE APPROACH AND LANDING IN CYQB, NO DAMAGE TO AIRCRAFT, PASSENGERS UNHURT(5).1. CREW NOTICED RT FUEL PRESSURE RED ANNUNCIATOR, SWITCH BOOST PUMP ON LIGHT OUT BUT ENGINE BEGAN SPOOL DOWN. 2. ENGINE FLAME OUT AT 10,000 FEET AGL. 3. UNEVENTFUL SINGLE ENGINE LANDING IN CYQB.INTERNAL BY-PASSINSIDE FCU CAUSED FUEL PRESURE DROP AT AROUND 50 PSI AT 18 PERCENT N2 (MIN. SHOULD BE 200 PSI). CAUSE UNKNOWN.