NTSB Identification: ATL88LA031.
The docket is stored on NTSB microfiche number 35218.
Accident occurred Friday, November 06, 1987 in MOBILE, AL
Probable Cause Approval Date: 05/16/1989
Aircraft: CESSNA 401A, registration: N6250Q
Injuries: 4 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 PLT RELATED THAT HE WAS CLIMBING THROUGH 4,300 FT WHEN HE LOST THE LEFT TURBOCHARGER. HE THEN NOTED SPARKS AND THEN FIRE FROM THE ENGINE. HE SHUT OFF THE FUEL, WAITED FOR THE FIRE TO GO OUT AND FEATHERED THE PROPELLER. THE FLT WAS CONTINUED TO MONTGOMERY, AL WHERE THE ACFT WAS BASED AND A NO FLAP LANDING WAS EXECUTED. NO FURTHER PROBLEMS WERE ENCOUNTERED. INSPECTION REVEALED THAT THE COUPLING FROM THE EXHAUST TO THE WASTE GATE HAD FAILED ALLOWING EXHAUST GASES TO ESCAPE INTO THE ENGINE COWLING. ACFT DAMAGE INCLUDED ENGINE MOUNT BEAMS AND THE WING SPAR THROUGH THE ENGINE NACELLE. AD 75-23-08 R5 DOES NOT APPLY TO THE FRACTURED COMPONENT.

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

EXHAUST SYSTEM..LEAK

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

EXHAUST SYSTEM,WASTEGATE..SEPARATION


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