What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23)The pilot stated the aircraft departed San Jose, California on a FAR part 135 flight with two paasengers on board. One minute after rotation, he said the tower reported the aircraft was trainling smoke behind the left engine. The pilot stated the left engine slowly lost power, and he initiated an immediate return to San Jose airport. He stated the engine continued to lose power during climb to pattern altitude. He said that when engine power deteriorated to 1000 RPM, he performed engine shutdown. The aircraft landed with the engine shutdown, and propeller feather. Because smoke had been reported, the pilot said he elected to secure the aircraft and evacuate passengers after exiting the runway. The aircraft was towed to parking. The aircraft was not damaged. No actual fire or injuries occurred. Cause of the power loss was later determined to be a clogged fuel injector resulting in excessively rich nixture provided to remaining cylinders. The rich mixture apparently caused vapor trail from the left engine. This completes the investigation and this matter is closed.
As the FAA filed it
(-23)THE PILOT STATED THE AIRCRAFT DEPARTED SAN JOSE, CALIFORNIA ON A FAR PART 135 FLIGHT WITH TWO PAASENGERS ON BOARD. ONE MINUTE AFTER ROTATION, HE SAID THE TOWER REPORTED THE AIRCRAFT WAS TRAINLING SMOKE BEHIND THE LEFT ENGINE. THE PILOT STATED THE LEFT ENGINE SLOWLY LOST POWER, AND HE INITIATED AN IMMEDIATE RETURN TO SAN JOSE AIRPORT. HE STATED THE ENGINE CONTINUED TO LOSE POWER DURING CLIMB TO PATTERN ALTITUDE. HE SAID THAT WHEN ENGINE POWER DETERIORATED TO 1000 RPM, HE PERFORMED ENGINE SHUTDOWN. THE AIRCRAFT LANDED WITH THE ENGINE SHUTDOWN, AND PROPELLER FEATHER. BECAUSE SMOKE HAD BEEN REPORTED, THE PILOT SAID HE ELECTED TO SECURE THE AIRCRAFT AND EVACUATE PASSENGERS AFTER EXITING THE RUNWAY. THE AIRCRAFT WAS TOWED TO PARKING. THE AIRCRAFT WAS NOT DAMAGED. NO ACTUAL FIRE OR INJURIES OCCURRED. CAUSE OF THE POWER LOSS WAS LATER DETERMINED TO BE A CLOGGED FUEL INJECTOR RESULTING IN EXCESSIVELY RICH NIXTURE PROVIDED TO REMAINING CYLINDERS. THE RICH MIXTURE APPARENTLY CAUSED VAPOR TRAIL FROM THE LEFT ENGINE. THIS COMPLETES THE INVESTIGATION AND THIS MATTER IS CLOSED.