# NTSB DEN67D0022: Piper PA-18, N4137Z, Byers, CO, July 1, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 1, 1966
- Place: Byers, CO · BYERS, CO
- Location: 39.7094° N, 104.2128° W: Placed by OpenAirDocs: center of Byers, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7094&lon=-104.2128&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 6, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 170877
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN67D0022
- Page: https://openairdocs.org/ntsb/DEN67D0022

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1792   66/7/1    BYERS COLO          PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 43, 4300
        TIME - 0930                    N4137Z              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 2500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - WATER IN FUEL
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
```

## Aircraft

- Registration: [N4137Z](https://openairdocs.org/aircraft/N4137Z), registered now, S/N 18-8209, built 1964 (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 O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4137Z (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 DEN89LA148](https://openairdocs.org/ntsb/DEN89LA148), Jun 26, 1989: Piper PA-18-150 (N4137Z), Durango, CO, substantial damage. Probable cause: THE PILOT FAILED TO MAINTAIN DIRECTIONAL CONTROL, WHICH RESULTED IN AN INADVERTENT GROUNDLOOP/SWERVE. A FACTOR RELATED TO THE ACCIDENT WAS: THE ADVERSE WIND CONDITION.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.