As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB WHEN POWER WAS REDUCED ENGINE FUEL PRESSURE DROPPED AND ENGINE POWER WAS PARTIALLY LOSS. AIRCRAFT RETURNED TO AIRPORT AND MAINTENANCE FOUND FUEL INJECTOR LINE HAD COME LOOSE. THIS WAS FIRST FLIGHT AFTER FUEL INJECTOR MAINTENANCE.