NTSB Identification: ATL92LA166.
The docket is stored on NTSB microfiche number 46967.
Accident occurred Tuesday, August 25, 1992 in ST. AUGUSTINE, FL
Probable Cause Approval Date: 07/29/1993
Aircraft: SIKORSKY UH-19D, registration: N37800
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.
THE PILOT STATED THAT AS HE WAS BEGINNING HIS EXTERNAL LOAD OPERATION, THE ENGINE LOST PARTIAL POWER AND HE WAS FORCED TO EXECUTE AN EMERGENCY LANDING. HE STATED THAT HE LANDED HARD IN THE UNIMPROVED AREA, AND THE AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE AS A RESULT OF THE HARD LANDING. EXAMINATION OF THE ENGINE REVEALED THAT A ROCKER ARM FAILED, RESULTING IN THE SEIZURE OF THE EXHAUST VALVE IN THE OPEN POSITION.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE FAILURE OF THE ENGINE'S EXHAUST VALVE ROCKER ARM.
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