NTSB Identification: LAX87LA184.
The docket is stored on NTSB microfiche number 33504.
Accident occurred Sunday, April 19, 1987 in CATALINA, CA
Probable Cause Approval Date: 03/10/1988
Aircraft: PIPER PA-24-250, registration: N5596P
Injuries: 3 Minor,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.

JUST AFTER TAKEOFF, THE PLT STATED THAT HE HEARD A LOUD BANG. THE ACFT BEGAN TO VIBRATE SEVERELY WITH THE ENGINE DEVELOPING PARTIAL POWER. THE ACFT WOULD NOT CLIMB AND THE PLT WAS ABLE TO MAINTAIN 100 FPM DESCENT. UNABLE TO RETURN TO THE ARPT, THE PLT DITCHED THE ACFT IN THE OCEAN. INSPECTION OF THE PROPELLER BLADES EXHIBITED LEADING EDGE DAMAGE ALONG THE OUTBOARD 4-5 INCHES WITH SOME POLISHING OF THE CAMBERED SIDE. ONE BLADE WAS BENT FORWARD AND MISSING APRX 4 INCHES OF THE TIP. APRX ONE INCH FURTHER WAS A GOUGE ON THE LEADING EDGE. THE OTHER BLADE WAS BENT REARWARD. ON THE LEADING EDGE APRX 4 INCHES FROM THE TIP WAS A GOUGE AND CRACK APRX ONE INCH LONG. THE ENGINE CONTAINED A CONSIDERABLE AMOUNT OF RUST AND CORROSION FROM BEING IN CONTACT WITH SALT WATER. NO OTHER MECHANICAL FAILURE OR MALFUNCTIONS COULD BE NOTED.

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..SEPARATION

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..PREVIOUS DAMAGE


Contributing Factors

OBJECT..SUBMERGED OBJECT

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