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FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
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2-0496 65/7/11 MARQUETTE MICH ENSTROM F-28 CR- 0 0 1 MISCELLANEOUS COMMERCIAL, FL.INSTR.,
TIME - 1308 N40043 PX- 0 0 1 DEMONSTRATION AGE 35, 5100 TOTAL HOURS,
DAMAGE-SUBSTANTIAL OT- 0 0 0 332 IN TYPE, NOT
INSTRUMENT RATED.
NAME OF AIRPORT - MARQUETTE CO.
TYPE OF ACCIDENT PHASE OF OPERATION
PROPELLER/ROTOR FAILURE: TAIL ROTOR LANDING: TRAFFIC PATTERN-CIRCLING
PROBABLE CAUSE(S)
PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
FACTOR(S)
MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
DIRECTIONAL CONTROL PROBLEM
REMARKS- ENTIRE TAIL ROTOR ASSEMBLY SEPARATED FROM THE PROTOTYPE ROTORCRAFT-BLADE GRIP ATTACH SCREWS FAILED
