# NTSB DIA69D0159: Mooney MK-20E, N4030N, Beltsville, MD, March 16, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 16, 1969
- Place: Beltsville, MD · BELTSVILLE, MD
- Location: 39.0399° N, 76.9204° W: Placed by OpenAirDocs: center of Beltsville, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0399&lon=-76.9204&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report May 6, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 191410
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DIA69D0159
- Page: https://openairdocs.org/ntsb/DIA69D0159

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0301  69/3/16    BELTSVILLE,MD       MOONEY MK-20E       CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N4030N              PX-  0  0  1  DUAL                      AGE 43, 2333 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            221 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BELTSVILLE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           DUAL STUDENT - INADVERTENTLY RETRACTED GEAR
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
```

## Aircraft

- Registration: [N4030N](https://openairdocs.org/deregistered/N4030N-1975-09-18), registration cancelled 1975-09-18, S/N 680022, built 1968 (OpenAirDocs)
- Reported make and model: MOONEY MK-20E
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Beltsville

## Other investigations on N4030N (2)

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.

- [NTSB NYC76AN005](https://openairdocs.org/ntsb/NYC76AN005), Jul 14, 1975: Mooney M20C (N4030N), Newtown, PA, destroyed, 1 fatal
- [NTSB DIA68F0195](https://openairdocs.org/ntsb/DIA68F0195), Apr 21, 1968: Mooney M20C (N4030N), Mitchellville, MD, substantial damage

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.