# NTSB UNK64X3499: Douglas A-26B, N4050A, Madison, WI, August 20, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 20, 1964
- Place: Madison, WI · MADISON, WI
- Location: 43.0731° N, 89.4012° W: Placed by OpenAirDocs: center of Madison, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.0731&lon=-89.4012&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report December 22, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182636
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3499
- Page: https://openairdocs.org/ntsb/UNK64X3499

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0621  64/8/20    MADISON WIS         DOUGLAS A-26B       CR-  0  0  2  MISCELLANEOUS             COMMERCIAL, AGE 25, 3000
        TIME - 2133                    N4050A              PX-  0  0  3  DEMONSTRATION             TOTAL HOURS, 100 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - MADISON MUNICIPAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - HYDROPLANING ON WET RUNWAY
```

## Aircraft

- Registration: [N4050A](https://openairdocs.org/deregistered/N4050A-2003-10-25), registration cancelled 2003-10-25, S/N 18670, built 1957 (OpenAirDocs)
- Reported make and model: DOUGLAS A-26B
- Registry model: [Douglas A-26B](https://openairdocs.org/model/douglas-a-26b) (registry code 3020504) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-2800 series](https://openairdocs.org/engine/pratt-whitney-r-2800-series) (registry code 52026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Madison Municipal

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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