OAK70D0121

NTSB accident investigation · Mooney M-20C · Arroyo, CA · August 15, 1969

Accident · No injuriesClosed
Date
August 15, 1969
Place
Arroyo, CA · ARROYO, CA
Injuries
4 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N6704UMooney M-20C
Status
Completed · report December 23, 1969
Report
Brief approved by the director
Case key
165143

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2689  69/8/15    ARROYO,CALIF        MOONEY M-20C        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 170
        TIME - 1530                    N6704U              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SANTA MONICA,CALIF          MONTEREY,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - PROPELLER AND ACCESSORIES: HUBS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           AIRFRAME - LANDING GEAR: NOSEWHEEL ASSEMBLIES
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
        REMARKS- BLADE RETAINING THREAD AREA IN HUB BARREL FAILED ALLOWING PROP BLADE TO BECOME DETACHED.

Aircraft

Registration
N6704U
Reported as
Mooney M-20C
Category
Airplane
Engine
reciprocating
Damage
Destroyed

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Other investigations on N6704U · 1

Matched to the same aircraft by N-number and date.