NTSB Identification: ATL87FA071.
The docket is stored on NTSB microfiche number 34109.
Accident occurred Friday, February 13, 1987 in BUFORD, GA
Probable Cause Approval Date: 08/31/1988
Aircraft: HUGHES 269A, registration: N3782B
Injuries: 1 Fatal.

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 WAS OBSERVED TO SLOW DOWN OVER THE PARKING LOT THEN CONTINUED OUT OVER THE LAKE. A PUFF OF SMOKE WAS OBSERVED AROUND THE REAR OF THE ENGINE AREA AND THE HELICOPTER FISHTAILED AS IT ALMOST CAME TO A STOP THEN DROPPED INTO THE WATER NOSE FIRST. IT SANK ALMOST IMMEDIATELY. EXAMINATION OF THE AIRCRAFT REVEALED A HOLE IN THE CRANKCASE. THE FRACTURE SURFACES INDICATED AN INTERNAL TO EXTERNAL PUCTURE. FURTHER EXAMINATION REVEALED A FATIGUE FAILURE OF A ROD CAP BOLT AND SUBSEQUENT SEPARATION OF THE ROD FROM THE CRANKSHAFT. EXTENSIVE DAMAGE TO THE INTERNAL COMPONENTS OF THE ENGINE WAS OBSERVED. THE PILOT WAS A LOW TIME HELICOPTER PILOT WHO COULD NOT SWIM AND WAS AFRAID OF THE WATER.

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

BUZZING..INTENTIONAL..PILOT IN COMMAND

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

EMERGENCY PROCEDURE..NOT FOLLOWED..PILOT IN COMMAND

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

AUTOROTATION..DELAYED..PILOT IN COMMAND

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

ENGINE ASSEMBLY..FAILURE,TOTAL

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

ENGINE ASSEMBLY,CONNECTING ROD..DISCONNECTED

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

ENGINE ASSEMBLY,CONNECTING ROD..FATIGUE



Index for Feb1987 | Index of months