# NTSB FTW76FRG48: Volksplane VP-1, N21DM, San Antonio, TX, April 26, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 26, 1976
- Place: San Antonio, TX · SAN ANTONIO, TX
- Location: 29.4241° N, 98.4936° W: Placed by OpenAirDocs: center of San Antonio, TX, within about 13 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.4241&lon=-98.4936&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 19, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 152949
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW76FRG48
- Page: https://openairdocs.org/ntsb/FTW76FRG48

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0786  76/4/26    SAN ANTONIO,TX      VOLKSPLANE VP-1     CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 37, 654
        TIME - 1930                    N21DM               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 125 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TWIN OAKS
        DEPARTURE POINT             INTENDED DESTINATION
          SAN ANTONIO,TX              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: LINES AND FITTINGS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           MISCELLANEOUS ACTS,CONDITIONS - FUEL STARVATION
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- VW ENG.TANK PORT BECAME UNCOVERED.WAS LOCATED IN CENTER,REAR OF TANK LARGER THAN FRONT.HIT DITCHES
```

## Aircraft

- Registration: [N21DM](https://openairdocs.org/deregistered/N21DM-2013-08-07), registration cancelled 2013-08-07, S/N 001, built 1974 (OpenAirDocs)
- Reported make and model: VOLKSPLANE VP-1
- Registry model: [Mccormick VOLKSPLANE VP-1](https://openairdocs.org/model/mccormick-volksplane-vp-1) (registry code 0563514) (OpenAirDocs)
- Registry engine: [Volkswagen CONVERSION](https://openairdocs.org/engine/volkswagen-conversion) (registry code 63501, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Twin Oaks

## 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 19760426007579A](https://openairdocs.org/incident/19760426007579A), Apr 26, 1976: Amtr 0563514, San Antonio, TX, Substantial damage. Vw eng. Tank port became uncovered. Was located in center,rear of tank larger than front. Hit ditches

## Other investigations on N21DM (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 FTW76DRG17](https://openairdocs.org/ntsb/FTW76DRG17), Aug 31, 1975: Volksplane VP-1 (N21DM), Marion, TX, substantial damage

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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