# NTSB DEN73DTC16: Mooney M20F, N9777M, Sheridan, WY, January 2, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 2, 1973
- Place: Sheridan, WY · SHERIDAN, WY
- Location: 44.7962° N, 106.9642° W: Placed by OpenAirDocs: center of Sheridan, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.7962&lon=-106.9642&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 10, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169660
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73DTC16
- Page: https://openairdocs.org/ntsb/DEN73DTC16

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0267   73/1/2    SHERIDAN,WYO        MOONEY M20F         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1519                    N9777M              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 50, 3841 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            841 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SHERIDAN COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          ROCK SPRINGS,WYO            SHERIDAN,WYO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO EXTEND LANDING GEAR
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - CHECKLIST-FAILED TO USE
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
        REMARKS- RADIO RECEIVER AND TRANSMITTER FOUND ON FREQS OTHER THAN SHERIDAN.FSS WARNING RE GR UP UNHEARD.
```

## Aircraft

- Registration: [N9777M](https://openairdocs.org/deregistered/N9777M-1984-06-15), registration cancelled 1984-06-15, S/N 680194 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sheridan County

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19730102000269A](https://openairdocs.org/incident/19730102000269A), Jan 2, 1973: Mooney M20F, Sheridan, WY, Substantial damage. Radio receiver and transmitter found on freqs other than Sheridan. Fss warning re gr up unheard.

## Other investigations on N9777M (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 DEN82FA010](https://openairdocs.org/ntsb/DEN82FA010), Nov 24, 1981: Mooney M-21 (N9777M), La Veta, CO, destroyed, 1 fatal

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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