# NTSB DEN71AD041: Mooney M20E, N1933Y, Monument, CO, May 10, 1971

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 10, 1971
- Place: Monument, CO · MONUMENT, CO
- Location: 39.0729° N, 104.8470° W: Placed by OpenAirDocs: center of Monument, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0729&lon=-104.8470&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal
- Status: Completed, report November 16, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 161124
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71AD041
- Page: https://openairdocs.org/ntsb/DEN71AD041

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0379  71/5/10    MONUMENT,COLO       MOONEY M20E         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 18, 202
        TIME - 2020                    N1933Y              PX-  3  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 5 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          PHOENIX,ARIZ                DENVER,COLO                  ALBUQUERQUE,N MEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - SNOW
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, IN PERSON
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               0
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          VFR
        REMARKS- FLEW INTO KNOWN DETERIORATING WEA. SITE ABOUT 8 MI L OF CRSE NEAR HIWAY TO DEST.RECOVERED 5/11/71.
```

## Aircraft

- Registration: [N1933Y](https://openairdocs.org/deregistered/N1933Y-2013-06-13), registration cancelled 2013-06-13, S/N 240, built 1950 (OpenAirDocs)
- Reported make and model: MOONEY M20E
- Registry model: [Mooney M20E](https://openairdocs.org/model/mooney-m20e) (registry code 5870212) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N1933Y (1)

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 MKC67D0091](https://openairdocs.org/ntsb/MKC67D0091), Jul 16, 1966: Mooney M20E (N1933Y), Chesterfield, MO, 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.

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