# NTSB CHI66F0462: Cessna 310, N4890B, Chicago, IL, December 4, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 4, 1965
- Place: Chicago, IL · CHICAGO, IL
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report January 5, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 174749
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI66F0462
- Page: https://openairdocs.org/ntsb/CHI66F0462

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3437   65/12/4   CHICAGO ILL         CESSNA 310          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 38, 1300
        TIME - 1000                    N4890B              PX-  0  0  4  BUSINESS                  TOTAL HOURS, 600 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - OHARE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: DOORS,DOOR FRAMES
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  DOOR/PANEL OPEN
        REMARKS- DOOR FAILED TO LOCK PROPERLY BECAUSE OF DISTORTION. PILOT ELECTED TO LAND. GEAR NOT FULLY EXTENDED
```

## Aircraft

- Registration: [N4890B](https://openairdocs.org/deregistered/N4890B-2012-12-07), registration cancelled 2012-12-07, S/N 35190, built 1955 (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: Ohare

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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