# NTSB MKC74DCD23: Stinson 108, N6688M, Sheldon, IA, March 5, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 5, 1974
- Place: Sheldon, IA · SHELDON, IA
- Location: 43.1796° N, 95.8433° W: Placed by OpenAirDocs: center of Sheldon, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1796&lon=-95.8433&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 25, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187107
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC74DCD23
- Page: https://openairdocs.org/ntsb/MKC74DCD23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0207   74/3/5    SHELDON,IOWA        STINSON 108         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1515                    N6688M              PX-  0  0  0  DUAL                      AGE 44, 8251 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            71 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SHELDON
        DEPARTURE POINT             INTENDED DESTINATION
          SHELDON,IOWA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER COMPENSATION FOR WIND CONDITIONS
           DUAL STUDENT - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    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                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          210                                                       15
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- R WING RAISED DRG ROLL.WIND GUSTING 20K.
```

## Aircraft

- Registration: [N6688M](https://openairdocs.org/aircraft/N6688M), registered now, S/N 108-4688, built 1948 (OpenAirDocs)
- Reported make and model: STINSON 108
- Registry model: [Stinson 108-3](https://openairdocs.org/model/stinson-108-3) (registry code 9230408) (OpenAirDocs)
- Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sheldon

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19740305004239A](https://openairdocs.org/incident/19740305004239A), Mar 5, 1974: Univar 1083, Sheldon, IA, Substantial damage. R wing raised drg roll. Wind gusting 20K.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.