NTSB Identification: ANC88FA037.
The docket is stored on NTSB microfiche number 36202.
Accident occurred Wednesday, March 09, 1988 in NOME, AK
Probable Cause Approval Date: 06/07/1989
Aircraft: BEECH B35, registration: N5115C
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 AIRCRAFT SUSTAINED AN IN-FLIGHT BREAKUP DURING THE ENROUTE PHASE OF THE FLIGHT. THE LEFT FITTING THAT SECURES THE FRONT SPARS OF THE STABILIZERS TO THE FUSELAGE REVEALED THE PRESENCE OF PRE-EXISTING FATIGUE CRACKING. THE INITIAL SEPARATION OF THE LEFT STABILIZER WAS INDICATIVE OF AN UPWARD FAILURE, WITH THE INITIAL SEPARATION IN THE FRONT SPAR. THE PILOT WAS A CERTIFIED A&P MECHANIC. NO PILOT OR AIRCRAFT LOGS WERE RECOVERED. NO EVIDENCE WAS FOUND INDICATING MAINTENANCE BEING PERFORMED BY PERSONS OTHER THAN THE PILOT.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:STABILIZER..FATIGUE
The National Transportation Safety Board determines the probable cause(s) of this accident to be:MAINTENANCE,INSPECTION..INADEQUATE..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:STABILIZER..SEPARATION
MAINTENANCE,RECORDKEEPING..IMPROPER..PILOT IN COMMAND
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