# NTSB IAD75AI027: Glasflugel H301B, N301H, Fredrick, MD, November 3, 1974

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 3, 1974
- Place: Fredrick, MD · FREDRICK, MD
- Location: 39.4385° N, 77.4117° W: Placed by OpenAirDocs: center of Frederick, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.4385&lon=-77.4117&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report December 12, 1974
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79847
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD75AI027
- Page: https://openairdocs.org/ntsb/IAD75AI027

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3499   74/11/3   FREDRICK,MD         GLASFLUGEL H301B    CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 31, 93 TOTAL
        TIME - 1202                    N301H               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 1 IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - FREDRICK MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          FREDRICK,MD                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           AIRFRAME - WINGS: SPARS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- R WING FAILED WHERE WING SPAR ENTERS FUSELAGE.
```

## Aircraft

- Registration: [N301H](https://openairdocs.org/deregistered/N301H-1975-01-08), registration cancelled 1975-01-08, S/N 66, built 1968 (OpenAirDocs)
- Reported make and model: GLASFLUGEL H301B
- Registry model: [Glasflugel H 301 B LIBELLE](https://openairdocs.org/model/glasflugel-h-301-b-libelle) (registry code 3800339) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Destroyed
- Airport: Fredrick Muni

## 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 19741103038529A](https://openairdocs.org/incident/19741103038529A), Nov 3, 1974: Glasfl H301LIBELLE, Fredrick, MD, Destroyed. R wing failed where wing spar enters fuselage.

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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