NTSB Identification: DEN84LA239.
The docket is stored on NTSB microfiche number 25324.
Accident occurred Thursday, July 26, 1984 in NATURITA, CO
Aircraft: AEROSPATIALE 316B, registration: N4246
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

ONE OF THE AXIAL COMPRESSOR BLADES SEPARATED RESULTING IN INTERNAL ENGINE DAMAGE AND LOSS OF ENGINE POWER. EXAMINATION OF THE BLADES SHOWED EVIDENCE OF CORROSION BEYOND ACCEPTABLE LIMITS. THE ENGINE WAS NOT EQUIPPED WITH AN AIR FILTER OR PARTICLE SEPARATOR. HELICOPTER DAMAGE WAS SUSTAINED DURING GROUND CONTACT.

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

COMPRESSOR ASSEMBLY,BLADE..CORRODED

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

MAINTENANCE,INSPECTION..INADEQUATE..COMPANY MAINTENANCE PERSONNEL

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

COMPRESSOR ASSEMBLY,BLADE..FAILURE,TOTAL

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