# NTSB CHI67A0071: Viscount V-700, N7450, Chicago, IL, December 4, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 4, 1966
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 50 uninjured
- Status: Completed, report August 14, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 120559
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67A0071
- Page: https://openairdocs.org/ntsb/CHI67A0071

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0063   66/12/4   CHICAGO ILL         VISCOUNT V-700      CR-  0  0  4  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1840                    N7450               PX-  0  0 46                            47, 17848 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            8628 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - O HARE INTL
        OPERATOR - UNITED AIR LINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           MISCELLANEOUS ACTS,CONDITIONS - HYDROPLANING ON WET RUNWAY
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: ICE/SLUSH ON RUNWAY
```

## Aircraft

- Registration: [N7450](https://openairdocs.org/deregistered/N7450-1988-07-05), registration cancelled 1988-07-05, S/N 206 (OpenAirDocs)
- Reported make and model: VISCOUNT V-700
- Registry model: [Vickers VISCOUNT 797](https://openairdocs.org/model/vickers-viscount-797) (registry code 9470404) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: O Hare Intl

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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