What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on July 30, 1996, at Washington memorial airport, MO CE-150 airplane was operating on an unpublished grass strip adjacent to hardstand runway 34/16. Flight instructor on board demonstrating grass field operations. During demo aircraft struck culvert with left landing gear. Repair damage is estimated to exceed value of airplane. Prior to grass field operation, instructor pilot was told by airport FBO employee that grass strip was open. Due to method of mowing the grass strip, culvert was not visible to instructor pilot. No injuries reported. Incident closed with this report.
As the FAA filed it
NARRATIVE: ON JULY 30, 1996, AT WASHINGTON MEMORIAL AIRPORT, MO CE-150 AIRPLANE WAS OPERATING ON AN UNPUBLISHED GRASS STRIP ADJACENT TO HARDSTAND RUNWAY 34/16. FLIGHT INSTRUCTOR ON BOARD DEMONSTRATING GRASS FIELD OPERATIONS. DURING DEMO AIRCRAFT STRUCK CULVERT WITH LEFT LANDING GEAR. REPAIR DAMAGE IS ESTIMATED TO EXCEED VALUE OF AIRPLANE. PRIOR TO GRASS FIELD OPERATION, INSTRUCTOR PILOT WAS TOLD BY AIRPORT FBO EMPLOYEE THAT GRASS STRIP WAS OPEN. DUE TO METHOD OF MOWING THE GRASS STRIP, CULVERT WAS NOT VISIBLE TO INSTRUCTOR PILOT. NO INJURIES REPORTED. INCIDENT CLOSED WITH THIS REPORT.