# NTSB FTW76DRG85: Bucker BU-133, N1940H, Cibolo, TX, August 22, 1976

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 22, 1976
- Place: Cibolo, TX · CIBOLO, TX
- Location: 29.5658° N, 98.2128° W: Placed by OpenAirDocs: center of Cibolo, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.5658&lon=-98.2128&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report September 15, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 154930
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW76DRG85
- Page: https://openairdocs.org/ntsb/FTW76DRG85

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2099  76/8/22    CIBOLO,TX           BUCKER BU-133       CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 58, 1736
        TIME - 1606                    N1940H              PX-  0  0  0  AIR SHOW/RACING           TOTAL HOURS, 310 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            UNK/NR INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CIBOLO,TX                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - OPERATED CARELESSLY
           PILOT IN COMMAND - MISJUDGED ALTITUDE AND CLEARANCE
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - 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                  TEMPERATURE-F
          NONE                                                      93
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- DENSITY ALT 3000FT. LATE SPIN RECOVERY.
```

## Aircraft

- Registration: [N1940H](https://openairdocs.org/deregistered/N1940H-2024-09-28), registration cancelled 2024-09-28, S/N 37, built 1940 (OpenAirDocs)
- Reported make and model: BUCKER BU-133
- Registry model: [Bucker BU-133](https://openairdocs.org/model/bucker-bu-133) (registry code 1590312) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (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 19760822025479A](https://openairdocs.org/incident/19760822025479A), Aug 22, 1976: Buker JUNGMISTR1, Cibolo, TX, Substantial damage. Density alt 3000FT. Late spin recovery.

## Other investigations on N1940H (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 ERA22LA294](https://openairdocs.org/ntsb/ERA22LA294), Jun 24, 2022: Bucker BU-133 (N1940H), Hartford, KY, substantial damage. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall during an attempted return to the runway.

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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