What was found
AFTER STARTED TAXIING, HEARD POPPING NOISE FROM LT ENGINE, ITT RAPIDLY CLIMBED TO 710 DEGREES OIL 1 LOW PRESSURE CAME ON, SHUTDOWN THE LEFT ENGINE. REMOVED & REPLACED THE 3 O’CLOCK AND 9 O’CLOCK 2.8, 2.5 BOV’S AND BOV SOLENOID IAW RAYTHEON HAWKER 1000 AMM CHAP 75-30-00. PERFORMED FUEL SAMPLE AND INSPECTED FUEL FILTER, ALL CHECKED GOOD. ACCOMPLISHED ENGINE RUN, OPS CHECKED GOOD IAW PWC 305 MM CHAPTER 71-00-00.