# NTSB DEN75DTC21: Piper PA-18, N2873P, Cassa, WY, May 3, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 3, 1975
- Place: Cassa, WY · CASSA, WY
- Location: 42.4161° N, 104.9500° W: Placed by OpenAirDocs: center of Cassa, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4161&lon=-104.9500&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 10, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148527
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN75DTC21
- Page: https://openairdocs.org/ntsb/DEN75DTC21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0997   75/5/3    CASSA,WY            PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1330                    N2873P              PX-  0  0  1  BUSINESS                  AGE 38, 3000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            800 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          WHEATLAND,WY                RETURN                       CASSA,WY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - PREMATURE LIFT-OFF
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      70
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          300                                                       5
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- GUSTING TO 20K. PWR LINES TO WEST.
```

## Aircraft

- Registration: [N2873P](https://openairdocs.org/aircraft/N2873P), registered now, S/N 18-4463, built 1955 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19750503010559A](https://openairdocs.org/incident/19750503010559A), May 3, 1975: Piper PA18S125, Cassa, WY, Substantial damage. Gusting to 20K. Pwr lines to west.

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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