# NTSB MKC69D0285: Cessna 310, N3688D, Estherville, IA, December 6, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 6, 1968
- Place: Estherville, IA · ESTHERVILLE, IA
- Location: 43.3997° N, 94.8342° W: Placed by OpenAirDocs: center of Estherville, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.3997&lon=-94.8342&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 22, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 107286
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC69D0285
- Page: https://openairdocs.org/ntsb/MKC69D0285

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4047   68/12/6   ESTHERVILLE,IOWA    CESSNA 310          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 48, 1540
        TIME - 1630                    N3688D              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 50 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - ESTHERVILLE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
        FACTOR(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- MAIN GR DID NOT FULLY EXTEND. PLT FAILED TO COMPLETELY STOW EMERG HAND CRANK. RT STRUT FLAT.
```

## Aircraft

- Registration: [N3688D](https://openairdocs.org/deregistered/N3688D-2013-07-01), registration cancelled 2013-07-01, S/N 35388, built 1956 (OpenAirDocs)
- Reported make and model: CESSNA 310
- Registry model: [Cessna 310](https://openairdocs.org/model/cessna-310) (registry code 2074202) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Estherville

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.

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