What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
A few minutes into a banner-tow flight, the pilot of N173C observed oil spraying on the aircraft windshield. He turned the aircraft toward the Long Beach airport (klgb). Within a short period of time the windshield was covered with oil to the point that the pilot could not see out. He dropped the banner over an industrial area, shut the engine down, and made an emergency landing on an inactive runway. There were no injuries and no damage to the aircraft. The propeller bearing race failed, causing the oil seal to rupture.
As the FAA filed it
A FEW MINUTES INTO A BANNER-TOW FLIGHT, THE PILOT OF N173C OBSERVED OIL SPRAYING ON THE AIRCRAFT WINDSHIELD. HE TURNED THE AIRCRAFT TOWARD THE LONG BEACH AIRPORT (KLGB). WITHIN A SHORT PERIOD OF TIME THE WINDSHIELD WAS COVERED WITH OIL TO THE POINT THAT THE PILOT COULD NOT SEE OUT. HE DROPPED THE BANNER OVER AN INDUSTRIAL AREA, SHUT THE ENGINE DOWN, AND MADE AN EMERGENCY LANDING ON AN INACTIVE RUNWAY. THERE WERE NO INJURIES AND NO DAMAGE TO THE AIRCRAFT. THE PROPELLER BEARING RACE FAILED, CAUSING THE OIL SEAL TO RUPTURE.