What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on October 21, 1997, N250WH, a garlik helicopter model UH-1H, threw a main rotor blade tip weight during a maintenance related ground run-up. The weight struck a nearby hangar, causing minor damage. The aircraft was not damaged and the pilot was not injured. Our investigation did not determine probable cause of the failure. Aggravating circumstances during the investigation was lack of accessibility to N2505WH maintenance records. Operator is involved in litigation with maintenance provider. The latter exercising a mechanics lien on the maintenance records. N250WH'S records are still not available as of this date. This incident did not involve a NMAC or pilot deviation.
As the FAA filed it
NARRATIVE: ON OCTOBER 21, 1997, N250WH, A GARLIK HELICOPTER MODEL UH-1H, THREW A MAIN ROTOR BLADE TIP WEIGHT DURING A MAINTENANCE RELATED GROUND RUN-UP. THE WEIGHT STRUCK A NEARBY HANGAR, CAUSING MINOR DAMAGE. THE AIRCRAFT WAS NOT DAMAGED AND THE PILOT WAS NOT INJURED. OUR INVESTIGATION DID NOT DETERMINE PROBABLE CAUSE OF THE FAILURE. AGGRAVATING CIRCUMSTANCES DURING THE INVESTIGATION WAS LACK OF ACCESSIBILITY TO N2505WH MAINTENANCE RECORDS. OPERATOR IS INVOLVED IN LITIGATION WITH MAINTENANCE PROVIDER. THE LATTER EXERCISING A MECHANICS LIEN ON THE MAINTENANCE RECORDS. N250WH'S RECORDS ARE STILL NOT AVAILABLE AS OF THIS DATE. THIS INCIDENT DID NOT INVOLVE A NMAC OR PILOT DEVIATION.