# NTSB CHI75DEE71: Grum Amer AA1-A, N9377L, Geneseo, IL, June 28, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 28, 1975
- Place: Geneseo, IL · GENESEO, IL
- Location: 41.4513° N, 90.1548° W: Placed by OpenAirDocs: center of Geneseo, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4513&lon=-90.1548&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report September 29, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 150197
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75DEE71
- Page: https://openairdocs.org/ntsb/CHI75DEE71

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2329  75/6/28    GENESEO,IL          GRUM AMER AA1-A     CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 28, 291
        TIME - 1620                    N9377L              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 56 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - DEWEY GREENE
        DEPARTURE POINT             INTENDED DESTINATION
          CLINTON,IA                  GENESEO,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
           PILOT IN COMMAND - FAILED TO INITIATE GO-AROUND
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
        REMARKS- STRIP WET MOWED SOD,DWN HILL.
```

## Aircraft

- Registration: [N9377L](https://openairdocs.org/aircraft/N9377L), registered now, S/N AA1A-0077, built 1971 (OpenAirDocs)
- Reported make and model: GRUM AMER AA1-A
- 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
- Airport: Dewey Greene

## 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 19750628023929A](https://openairdocs.org/incident/19750628023929A), Jun 28, 1975: Grumav AA1A, Geneseo, IL, Substantial damage. Strip wet mowed sod,dwn hill.

## Other investigations on N9377L (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 MKC73AK020](https://openairdocs.org/ntsb/MKC73AK020), Sep 3, 1972: Amer Avco AA-1A (N9377L), Waterloo, IA, minor damage, 1 fatal

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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