# NTSB DEN77FTE42: Schwiezer SGS233, N65829, Boulder, CO, May 13, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 13, 1977
- Place: Boulder, CO · BOULDER, CO
- Location: 40.0244° N, 105.2513° W: Placed by OpenAirDocs: center of Boulder, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.0244&lon=-105.2513&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 1, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158149
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN77FTE42
- Page: https://openairdocs.org/ntsb/DEN77FTE42

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1158  77/5/13    BOULDER,CO          SCHWIEZER SGS233    CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 26, 14 TOTAL
        TIME - 1300                    N65829              PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BOULDER MUNICIPAL
        DEPARTURE POINT             INTENDED DESTINATION
          BOULDER,CO                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        REMARKS- PLT FLEW OVER FIELD AT LOW ALTITUDE THEN TRIED T0 EXECUTE A 270DEG TURN TO LAND.
```

## Aircraft

- Registration: [N65829](https://openairdocs.org/aircraft/N65829), registered now, S/N 326, built 1974 (OpenAirDocs)
- Reported make and model: SCHWIEZER SGS233
- Registry model: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Boulder Municipal

## 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 19770513013679A](https://openairdocs.org/incident/19770513013679A), May 13, 1977: Scwzer SGS233A, Boulder, CO, Substantial damage. Plt flew over field at low altitude then tried T0 execute a 270DEG turn to land.

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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