As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED ENGINE QUIT AT LOW RPM WITH AIRCRAFT FUEL BOOSTER PUMP CIRCUIT BREAKER PULLED AND EMERGENCY PUMP OFF. GROUND RUN CONFIRMED PRESSURE DROP FROM 40 PSI TO APPROXIMATELY 35 PSI, FLUCTUATED BETWEEN 800 AND 1000 RPM ON ENGINE, BELOW ARO LINE, WITH BOOSTER PUMP OFF AND UNSTABLE AT 42 TO 44 PSI WITH BOOSTER PUMP ON. NEW PUMP INSTALLED. GROUND RUN SERVICEABLE.