NTSB Identification: NYC85FA092.
The docket is stored on NTSB microfiche number 29684.
Accident occurred Monday, April 01, 1985 in PORT ELIZABETH, NJ
Aircraft: SIKORSKY S-55B, registration: N90885
Injuries: 1 Minor.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE HELICOPTER LANDED HARD AFTER A DECREASE IN RPM DURING INITIAL CLIMB. THE ACFT WAS BEING USED FOR A SLING OPERATION. INVESTIGATION REVEALED A FAILED CLUTCH ASSEMBLY, S1435-2500-1. THE CLUTCH HAD OPERATED ONLY 200 HRS SINCE A MAJOR OVERHAUL.

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

ROTOR DRIVE SYSTEM,CLUTCH ASSEMBLY..FAILURE,TOTAL

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

MAINTENANCE..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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

MAINTENANCE,INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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

MAINTENANCE,MAJOR REPAIR..IMPROPER..OTHER MAINTENANCE PERSONNEL

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