As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) BOTH ENGINES RUNNING WHILE ON THE RAMP. WHEN POWER WAS APPLIED TO THE PORT ENGINE TO TURN THE A/C THE ENGINE RETURNED TO MIN. FLOW OF 38 PERCENT UNCOMMNANDED. THERE WAS NO RESPONSE ON THE POWER LEVER. A/C HANGARED AND PORT ENGINE INSPECTED. THE PY GOVERNING AIR PRESSURE, HEATED LINE PN 3044599701 WAS FOUND BROKEN AT THE FITTING FLANGE ON THE FCU. LINE REPLACED, GROUND RUN SERVICEABLE AND A/C RETURNED TOSERVICE.