# NTSB IAD75AIG18: Grum Amer AA1-B, N6429L, Stevensville, MD, April 27, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 27, 1975
- Place: Stevensville, MD · STEVENSVILLE, MD
- Location: 38.9744° N, 76.3185° W: Placed by OpenAirDocs: center of Stevensville, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9744&lon=-76.3185&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 28, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146860
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD75AIG18
- Page: https://openairdocs.org/ntsb/IAD75AIG18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0777  75/4/27    STEVENSVILLE,MD     GRUM AMER AA1-B     CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 21, 47 TOTAL
        TIME - 1535                    N6429L              PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          GLEN BURNIE,MD              RETURN                       STEVENSVILLE,MD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: OBJECT                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
           PILOT IN COMMAND - DELAYED IN INITIATING GO-AROUND
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: OTHER
        REMARKS- L GR HIT TREE STUMP ABT 15IN HI APRX 20FT FM THRESHOLD.GR COLLAPSED DRG LDG AT BALT-WASH INTL.
```

## Aircraft

- Registration: [N6429L](https://openairdocs.org/aircraft/N6429L), registered now, S/N AA1A-0429, built 1972 (OpenAirDocs)
- Reported make and model: GRUM AMER AA1-B
- Registry model: [American AA-1A](https://openairdocs.org/model/american-aa-1a) (registry code 0630710) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (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 19750427008559A](https://openairdocs.org/incident/19750427008559A), Apr 27, 1975: Grumav AA1A, Stevensville, MD, Substantial damage. L gr hit tree stump abt 15IN hi aprx 20FT fm threshold. Gr collapsed drg ldg at balt-wash intl.

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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