# NTSB IAD71II029: Beech E33, N5475U, Washington, DC, December 9, 1970

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: December 9, 1970
- Place: Washington, DC · WASHINGTON, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report February 11, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159513
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD71II029
- Page: https://openairdocs.org/ntsb/IAD71II029

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0025   70/12/9   WASHINGTON,DC       BEECH E33           CR-  0  0  2  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1524                    N5475U              PX-  0  0  1  AIR TAXI-PASSG            AGE 30, 960 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            7 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - WASH NATL APT
        DEPARTURE POINT             INTENDED DESTINATION
          EASTON,MD                   WASHINGTON,DC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           COPILOT - INADVERTENTLY RETRACTED GEAR
           COPILOT - SPONTANEOUS-IMPROPER ACTION
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
```

## Aircraft

- Registration: [N5475U](https://openairdocs.org/aircraft/N5475U), registered now, S/N CD-1121, built 1967 (OpenAirDocs)
- Reported make and model: BEECH E33
- Registry model: [Beech E33](https://openairdocs.org/model/beech-e33) (registry code 1151422) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage
- Airport: Wash Natl Apt

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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