What was found
IN HOVER, PILOT HEARD "TWO BIG POPS IN THE ENGINE". INSTRUMENTS INDICATED NO PROBLEMS. NO YAW WAS NOTICED. MX REPLACED ENGINE ASSY ALONG WITH ENGINE FUEL SYSTEM. ENGINE QUARANTINED AWAITING TEST CELL RUN AT TIME OF THIS REPORT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
IN HOVER, PILOT HEARD "TWO BIG POPS IN THE ENGINE". INSTRUMENTS INDICATED NO PROBLEMS. NO YAW WAS NOTICED. MX REPLACED ENGINE ASSY ALONG WITH ENGINE FUEL SYSTEM. ENGINE QUARANTINED AWAITING TEST CELL RUN AT TIME OF THIS REPORT.