NTSB Identification: NYC85FA244.
The docket is stored on NTSB microfiche number 29832.
Accident occurred Saturday, September 21, 1985 in WARWICK, RI
Aircraft: BEECH V35B, registration: N5NG
Injuries: 2 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.

WHILE EN ROUTE AT 5000' MSL, THE PLT TRANSMITTED THAT HE HAD AN ENG PROBLEM & REQUESTED CLEARANCE TO LAND AT THE PROVIDENCE/THEODORE FRANCIS GREEN STATE ARPT, WHICH WAS APRX 12 MI AWAY. THE PLT THEN ASKED THE CONTROLLER IF THAT WAS THE CLOSEST ARPT; HOWEVER, DUE TO THE RADIO CONGESTION, THE CONTROLLER HAD DIFFICULTY UNDERSTANDING THE PLT. VECTORS WERE PROVIDED TO THE PROVIDENCE ARPT. SUBSEQUENTLY, THE ACFT CRASHED ACROSS AN INTERSTATE HIGHWAY APRX 2 MI FROM THE ARPT WHILE ON A HEADING IN THAT DIRECTION. DURING THE CRASH LANDING, THE ACFT COLLIDED WITH A CONCRETE DIVIDER/BARRIER. AN INVESTIGATION REVEALED THAT THE ENG CRANKSHAFT, PN 639243, HAD FAILED FROM FATIGUE AT TWO LOCATIONS. THE FORWARD FAILURE WAS THRU THE CRANKCHEEK BETWEEN THE #2 MAIN BEARING JOURNAL & THE #3 CONNECTING ROD CRANKPIN. THE AFT FAILURE WAS THRU THE CRANKCHEEK BETWEEN THE #4 CONNECTING ROD CRANKPIN & THE #3 MAIN BEARING JOURNAL. BOTH FATIGUE CRACKS HAD SUBSURFACE ORIGINS.

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

ENGINE ASSEMBLY,CRANKSHAFT..FATIGUE


Contributing Factors

WEATHER CONDITION..HAZE/SMOKE


Contributing Factors

TERRAIN CONDITION..NONE SUITABLE

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