NTSB Identification: LAX81IA011
14 CFR Part 135 Nonscheduled operation of SOUTHERN ORE
Aircraft: BEECH A36, registration: N6088S

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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5-0037   80/11/3   OROVILLE,CA         BEECH A36           CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 24, 1200
        TIME - 1000                    N6088S              PX-  0  0  1  AIR TAXI-PASSG            TOTAL HOURS, 232 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          ASHLAND,CA                  ALBURN,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - UNDER TORQUED
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- NO 2 CYL BASE STUDS & THRU BOLTS FAILED.EVIDENCE OF FRETTING ON CYL BASE,FATIGUE OF LWR THRU BOLTS

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