NTSB Identification: ATL90DKJ04.
The docket is stored on NTSB microfiche number 42148.
Accident occurred Sunday, May 27, 1990 in TUSCALOOSA, AL
Probable Cause Approval Date: 09/21/1992
Aircraft: 67 FLYING DUTCHMAN D1/LFD-13, registration: N1113D
Injuries: 1 Uninjured.

THE PILOT REPORTED THAT HE WAS AT 2000 FEET WHEN A PROPELLER BLADE SEPARATED FROM THE AIRCRAFT. A FORCED LANDING WAS MADE AFTER THE ENGINE WAS SHUT DOWN USING THE MAGNETO SWITCH. SUBSEQUENT EXAMINATION OF THE PROPELLER REVEALED THAT THE BLADES HAD BEEN SHORTENED FROM THE TYPE CERTIFICATE DATA SHEET MINIMUM OF 71.5 IN TO 65 IN. ADDITIONALLY THE PROPELLER WAS NOT RATED FOR THE 125 HP ENGINE. ITS MAXIMUM RATED HP WAS 115. THE MODIFICATION WAS DONE BY UNKNOWN MAINTENANCE PERSONNEL.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE PERSONNEL WHO PERFORMED AN IMPROPER MODIFICATION OF THE PROPELLER BLADE.

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