As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED REPORTED LT ENG SURGING AND "POPPING" AFTER START. REPLACED FUEL CONTROL ASSY. (HMU) WITH REPAIRED EXCHANGE UNIT, ENGINE OPERATIONS NORMAL. RECOMMEND ACCY MFG INVESTIGATE AT TEARDOWN FOR FAULTS TO DETERMINE IF ONE-TIME PROBLEM, OR FURTHER INVESTIGATION REQUIRED.