What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Instructor demonstrated for tailwheel endorsement and experienced hard landing. Impact while in left slip or shortly thereafter indicated by collapsed left main gear spring. Left main gear buckled on impact; aircraft slid on nose for 150 ft. aircraft impacted 320 ft. from approach end of rwy 17. Subsequent investigation by FAA inspector on scene revealed loss of aileron control system continuity due to impact with rwy. Found aileron control attach bracket broken from bellcrank at lower center fuselage. Seat horizontal straps (2) broken on back seat.
As the FAA filed it
(-23) INSTRUCTOR DEMONSTRATED FOR TAILWHEEL ENDORSEMENT AND EXPERIENCED HARD LANDING. IMPACT WHILE IN LEFT SLIP OR SHORTLY THEREAFTER INDICATED BY COLLAPSED LEFT MAIN GEAR SPRING. LEFT MAIN GEAR BUCKLED ON IMPACT; AIRCRAFT SLID ON NOSE FOR 150 FT. AIRCRAFT IMPACTED 320 FT. FROM APPROACH END OF RWY 17. SUBSEQUENT INVESTIGATION BY FAA INSPECTOR ON SCENE REVEALED LOSS OF AILERON CONTROL SYSTEM CONTINUITY DUE TO IMPACT WITH RWY. FOUND AILERON CONTROL ATTACH BRACKET BROKEN FROM BELLCRANK AT LOWER CENTER FUSELAGE. SEAT HORIZONTAL STRAPS (2) BROKEN ON BACK SEAT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.