# NTSB FTW72FQD30: Schreder HP-12, N4738G, Marfa, TX, June 26, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 26, 1972
- Place: Marfa, TX · MARFA, TX
- Location: 30.3107° N, 104.0255° W: Placed by OpenAirDocs: center of Marfa, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.3107&lon=-104.0255&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report February 26, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 167360
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW72FQD30
- Page: https://openairdocs.org/ntsb/FTW72FQD30

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2405  72/6/26    MARFA,TEX           SCHREDER HP-12      CR-  0  1  0  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1400                    N4738G              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  47, 19646 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            419 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MARFA,TEX                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: OTHER
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           AIRFRAME - FLIGHT CONTROL SURFACES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FLUTTER
           AIRFRAME - WINGS: SPARS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        WEATHER BRIEFING - BRIEFED BY WEATHER BUREAU PERSONNEL, IN PERSON
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- TAIL CTL SURFACES NOT BALANCED AFTR MODIFICATION.PLT BAILED OUT.
```

## Aircraft

- Registration: [N4738G](https://openairdocs.org/deregistered/N4738G-1972-08-17), registration cancelled 1972-08-17, S/N 1 (OpenAirDocs)
- Reported make and model: SCHREDER HP-12
- Registry model: [Schreder HP-12](https://openairdocs.org/model/schreder-hp-12) (registry code 056035M) (OpenAirDocs)
- Category: Glider, amateur-built
- Engines: none
- Damage: 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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