# NTSB SEA72AS021: Mooney M20C, Broadus, MT, November 27, 1971

- Type: NTSB accident investigation
- Date: November 27, 1971
- Place: Broadus, MT · BROADUS, MT
- Location: 45.4431° N, 105.4083° W: Placed by OpenAirDocs: center of Broadus, MT, within about 6 miles (OpenAirDocs)
- Highest injury: Fatal
- Injuries: 2 fatal, 2 serious
- Status: Completed
- Report: DirectorBrief, May 24, 1972
- NTSB case key (mKey): 164976
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA72AS021
- Page: https://openairdocs.org/ntsb/SEA72AS021

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3866  71/11/27 NR.BROADUS,MONT       MOONEY M20C         CR-  2  0  0  NONCOMMERCIAL             PRIVATE, AGE 45, 1040
        TIME - 1420                    N6436U              PX-  0  2  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 964 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          ONEILL,NEBR                 LEWISTOWN,MONT               STURGIS,S DAK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           WEATHER - LOW CEILING
           WEATHER - SNOW
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                              UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         SNOW SHOWERS
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          FOG                                                      270
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           10                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ACFT OBS ABOVE HIWAY AT VERY LOW LEVEL.VIS REPTD ABOUT 200 FT. AIRFRAME ICE FOUND ON WGS,VERT STAB
```

## Sequence of events

- Enroute-change of cruise level

## Aircraft

- Registration: N6436U, a cancelled registration (https://openairdocs.org/deregistered/N6436U-1980-07-15) (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Registry model: Cessna U206G (registry code 2073356, https://openairdocs.org/model/cessna-u206g) (OpenAirDocs)
- Category: Airplane
- Damage: Destroyed

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.