NTSB Identification: CHI85FA351.
The docket is stored on NTSB microfiche number 29665.
Nonscheduled 14 CFR
Accident occurred Friday, August 16, 1985 in SOUTH LYON, MI
Aircraft: CESSNA 404, registration: N404EX
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 ACFT TOOK OFF AND CLIMBED TO 5000 FT UNEVENTFULLY. IT THEN DROPPED OFF RADAR AND SUBSEQUENTLY IMPACTED THE GROUND IN A FLAT UPRIGHT ATTITUDE. A POST-CRASH FIRE CONSUMED THE MAJORITY OF THE AIRFRAME. ENG AND PROP TEARDOWNS INDICATED NO ABNORMALITIES AND PWR AT THE TIME OF IMPACT. A FIRE IN THE CARGO COMPARTMENT WAS RULED OUT BY ATF INVESTIGATORS. MAIN ELECTRICAL SWITCHES WERE FOUND OFF IN THE WRECKAGE. AN OXYGEN BOTTLE IN THE NOSE CAUGHT FIRE SEPARATLEY FROM THE REST OF THE ACFT BUT IT COULD NOT BE DETERMINED IF THE OXYGEN FIRE TOOK PLACE IN THE AIR OR AFTER IMPACT. THE DOOR WARNING, LEFT AND RIGHT ALT OUT, LEFT AND RIGHT HYD FLOW AND LEFT AND RIGHT LOW FUEL ANNUNCIATOR BULBS EXHIBITED STRETCHED FILAMENTS WHEN EXAMINED FOLLOWING THE CRASH.

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

REASON FOR OCCURRENCE UNDETERMINED

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