CHI78FEP52

NTSB accident investigation · Thorp T-18 · Oshkosh, WI · July 30, 1978

Accident · FatalClosed
Date
July 30, 1978
Place
Oshkosh, WI · OSHKOSH, WI
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N18FKThorp T-18
Status
Completed · report January 8, 1979
Report
Brief approved by the director
FAA report
19780730036689A
Case key
139390

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

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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
----------------------------------------------------------------------------------------------------------------------------
3-3407  78/7/30    OSHKOSH,WI          THORP T-18          CR-  1  0  0  MISCELLANEOUS             PRIVATE, AGE 47, 674
        TIME - 1540                    N18FK               PX-  1  0  0  AIR SHOW/RACING           TOTAL HOURS, 82 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - WITTMAN FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          OSHKOSH,WI                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
           MISCELLANEOUS ACTS,CONDITIONS - POORLY PLANNED APPROACH
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, IN PERSON
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           60                                                      110
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           5                                                       VFR
        TYPE OF FLIGHT PLAN
          NONE
         FIRE AFTER IMPACT
        REMARKS- LOW BASE LEG WITH TURN TO FINAL AT APRX 50-100FT AGL.

Aircraft

Registration
N18FK
Reported as
Thorp T-18
Category
Airplane, amateur-built
Engine
reciprocating
Damage
Destroyed
Airport
Wittman Field

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.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.