CHI68D0276

NTSB accident investigation · Lockheed 12A · Montello, WI · August 10, 1967

Accident · No injuriesClosed
Date
August 10, 1967
Place
Montello, WI · MONTELLO, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4001Lockheed 12A
Status
Completed · report November 1, 1967
Report
Brief approved by the director
Case key
115165

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
----------------------------------------------------------------------------------------------------------------------------
3-2725  67/8/10    MONTELLO,WIS        LOCKHEED 12A        CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 45, 3500
        TIME - 1710                    N4001               PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 7 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - DAGGETT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- RIGHT HAND OUTBOARD BEARING SUPPORT BOLTS FAILED,ALLOWING THE JACK SHAFT TO BEND AFT.

Aircraft

Registration
N4001
Reported as
Lockheed 12A
Category
Airplane
Engine
reciprocating
Damage
Substantial damage
Airport
Daggett

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.