NTSB Identification: SEA72FYA33
14 CFR Part 91 General Aviation
Aircraft: PIPER PA-25, registration: N8707L
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-1315  72/5/15    OAKLEY,ID           PIPER PA-25         CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 49, 6797
        TIME - 0930                    N8707L              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 50 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OAKLEY,ID                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: AILERON AND AILERON TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   50                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
         FIRE AFTER IMPACT
        REMARKS- R AILERON DOWN CABLE PULLY BRACKET BROKE AT BOLT HOLE.BOLT FOUND EXCESSIVELY TIGHT.
Full narrative is not available


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