# NTSB DEN80FA033: Beech 58, N25734, Casper, WY, May 16, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 16, 1980
- Place: Casper, WY · CASPER, WY
- Location: 42.8421° N, 106.3213° W: Placed by OpenAirDocs: center of Casper, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.8421&lon=-106.3213&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 6 uninjured
- Status: Completed, report July 28, 1980
- Report: Brief approved by the director
- Safety recommendations: Yes
- ADs cited in the narratives: [AD 78-05-06](https://openairdocs.org/ad/78-05-06) (OpenAirDocs)
- NTSB case key (mKey): 79393
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN80FA033
- Page: https://openairdocs.org/ntsb/DEN80FA033

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1355  80/5/16    CASPER,WY           BEECH 58            CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 28, 2250
        TIME - 1145                    N25734              PX-  0  0  5  CORP/EXEC                 TOTAL HOURS, 300 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - NATRONA CO INTL
        DEPARTURE POINT             INTENDED DESTINATION
          CASPER,WY                   LAS VEGAS,NV
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: ON GROUND                             STATIC: STARTING ENGINE(S)
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - FUEL SYSTEM: VENTS,DRAINS,TANK CAPS
           POWERPLANT - FUEL SYSTEM: LINES AND FITTINGS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN WING
        REMARKS- R WING EXPLODED DRG R ENG START.FOUND VENT TUBE B-NUT DSCNCTD IN R WING,61HRS AFTER AD78-05-06 C/W
```

## Aircraft

- Registration: [N25734](https://openairdocs.org/aircraft/N25734), registered now, S/N TH-390, built 1973 (OpenAirDocs)
- Reported make and model: BEECH 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (registry code 1152740) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Natrona Co Intl

## 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 19800516016889A](https://openairdocs.org/incident/19800516016889A), May 16, 1980: Beech 58, Casper, WY, Substantial damage. Fuel vapor explosion occurred in right wing during engine start on ramp. Found b nut fuel vent tube disconnected.

## Other investigations on N25734 (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 ERA16LA004](https://openairdocs.org/ntsb/ERA16LA004), Oct 6, 2015: Beech 58 (N25734), Albany, GA, substantial damage. Probable cause: The mechanic's inadequate inspection of the brake system during the most recent annual inspection, which resulted in the failure of both left and right main landing gear torque plates and a…

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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