As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TORQUE FLUX ON BOTH ENGINES FOLLOWED BY AN OIL SMELL. SHUT BOTH BLEEDS OFF AND IT STABILIZED FOR APPROXIMATELY 5 MINUTES, THEN NR 2 TORQUE DECREASED TO 45 PERCENT. REPLACED NR 1 AND NR 2 HP BLEED SWITCHES (P/N 7G899) (S/N 356), (S/N 272) OFF. ALSO, FOUND NR 2 HP BLEED VALVE GASKET BLOWN. REPLACED GASKET.