NTSB Identification: SEA85LA230.
The docket is stored on NTSB microfiche number 28718.
Accident occurred Tuesday, September 24, 1985 in BURLINGTON, WA
Aircraft: BELLANCA 17-30A, registration: N6627V
Injuries: 1 Serious,2 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.

DURING INITIAL CLIMB, THE PLT SMELLED SMOKE & HEARD A BACKFIRE, THEN THE ENG LOST POWER. A FORCED LANDING WAS MADE IN A FIELD ON ROUGH/UNEVEN TERRAIN. DURING THE LANDING ROLL, THE ACFT STRUCK A DITCH & WAS DAMAGED. A VISUAL INSPECTION REVEALED THAT THE LEFT EXHAUST MUFFLER HAD FAILED AT ITS OUTLET. THIS ALLOWED HOT EXHAUST GASES TO ENTER THE ENG COMPARTMENT & DAMAGE THE VOLTAGE REGULATOR, ALTERNATOR & MAGNETO WIRING (P-LEADS). WITH P-LEAD FAILURE, THE MAGNETOS WOULD HAVE BEEN INOPERATIVE. AN AIRWORTHINESS DIRECTIVE, AD 76-23-03, WHICH REQUIRED AN INSPECTION OF THE EXHAUST SYS EACH 100 HRS, HAD LAST BEEN COMPLIED WITH ON 8/18/82. HOWEVER THE ACFT HAD BEEN OPERATED FOR ONLY 50 FLT HRS SINCE THAT DATE.

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

EXHAUST SYSTEM,MUFFLER..FAILURE,TOTAL

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:

ELECTRICAL SYSTEM,ELECTRIC WIRING..BURNED

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

IGNITION SYSTEM,MAGNETO..INOPERATIVE


Contributing Factors

TERRAIN CONDITION..NONE SUITABLE


Contributing Factors

TERRAIN CONDITION..DITCH

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