# NTSB DEN67D0031: Piper PA-28, N4566R, Greely, CO, June 5, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 5, 1966
- Place: Greely, CO · GREELY, CO
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 8, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 170946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN67D0031
- Page: https://openairdocs.org/ntsb/DEN67D0031

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1915   66/6/5    GREELY COLO         PIPER PA-28         CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 27, 35 TOTAL
        TIME - 0550                    N4566R              PX-  0  0  0  SOLO                      HOURS, 17 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - WELD COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
           PERSONNEL - FLIGHT INSTRUCTOR: INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
           WEATHER - THUNDERSTORM ACTIVITY
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        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                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT CROSS WIND 248-292 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          360                                                       35
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- WIND 360-DEGREES,35 KTS. RUNWAY HEADING 11/29.
```

## Aircraft

- Registration: [N4566R](https://openairdocs.org/aircraft/N4566R), registered now, S/N 28-21309, built 1965 (OpenAirDocs)
- Reported make and model: PIPER PA-28
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (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
- Airport: Weld County

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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