# NTSB DEN70F0121: Consolidatd P4Y-2, N1911H, Greybull, WY, September 3, 1969

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 3, 1969
- Place: Greybull, WY · GREYBULL, WY
- Location: 44.4865° N, 108.0557° W: Placed by OpenAirDocs: center of Greybull, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.4865&lon=-108.0557&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report January 7, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 158741
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN70F0121
- Page: https://openairdocs.org/ntsb/DEN70F0121

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2691   69/9/3    GREYBULL,WYO        CONSOLIDATD P4Y-2   CR-  2  0  0  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1450                    N1911H              PX-  0  0  0  FIRE CONTROL              37, 6000 TOTAL HOURS, 100
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GREYBULL,WYO                GREYBULL,WYO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           WEATHER - OBSTRUCTIONS TO VISION
           TERRAIN - HIDDEN OBSTRUCTIONS
           TERRAIN - HIGH OBSTRUCTIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          SMOKE                                                    120
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           30                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- FIRE SLURRY DROP.ACFT OBSVD TO EMERGE FM SMK CLD ON FIRE,R WING DOWN.HIT HIGHEST TREES IN FLT PATH
```

## Aircraft

- Registration: [N1911H](https://openairdocs.org/deregistered/N1911H-1970-04-13), registration cancelled 1970-04-13, S/N 59792, built 1945 (OpenAirDocs)
- Reported make and model: CONSOLIDATD P4Y-2
- Registry model: [Consolidated Vultee P4Y-2](https://openairdocs.org/model/consolidated-vultee-p4y-2) (registry code 2421102) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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