NTSB Identification: LAX82FA347
14 CFR Part 91: General Aviation
Accident occurred Tuesday, September 21, 1982 in MALIBU, CA
Probable Cause Approval Date: 09/21/1983
Aircraft: PIPER PA-28RT-201T, registration: N8094F
Injuries: 2 Uninjured.

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 ENG SEIZED APPROXIMATELY 3500 FT & THE ACFT WAS DITCHED OFF THE BEACH. THE RIGHT MAG DISTRIBUTOR BLOCK SHOWED EVIDENCE OF CARBON TRACKING & CROSS FIRING. NEITHER END OF THE RIGHT MAG HAD BREATHER PLUGS INSTALLED. ALL SPARK PLUGS WERE EXCESSIVELY FOULED & SEVERELY ERODED. SPRINGS ON THE SPARK PLUGS LEADS WERE BURNED & DIRTY. THE #1 CONROD WAS SPLITLENGTHWISE & WAS IN SEVERAL PIECES. EXAMINATION OF THE LOG BOOK SHOWED IMPROPER MAINTENANCE PRACTICES SUCH AS OVERHAULING A CYLINDER & INSTALLING DETERGENT TYPE OIL. NO EVIDENCE OF COMPLIANCE WITH TELEDYNE SERVICE BULLETIN #612 COULD BE FOUND. THIS BULLETIN RECOMMENDS PERIODIC MAINTENANCE PROCEDURES TO ESTABLISH CLEANING & INSPECTION GUIDELINES GOVERNING BENDIX MAGNETOS & IGNITION HARNESSES.

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

IGNITION SYSTEM,MAGNETO..INOPERATIVE

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

IGNITION SYSTEM,DISTRIBUTOR..SHORTED

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

IGNITION SYSTEM,SPARK PLUG..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:

MAINTENANCE,SERVICE BULLETIN/LETTER..NOT FOLLOWED..COMPANY MAINTENANCE PERSONNEL

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

ENGINE ASSEMBLY,CONNECTING ROD..FAILURE,TOTAL

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