# NTSB NYC78FGM46: Cessna 172, N9921Q, Greenville, ME, August 18, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 18, 1978
- Place: Greenville, ME · GREENVILLE, ME
- Location: 45.4662° N, 69.5780° W: Placed by OpenAirDocs: center of Greenville, ME, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.4662&lon=-69.5780&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 31, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 139632
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC78FGM46
- Page: https://openairdocs.org/ntsb/NYC78FGM46-139632

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2705  78/8/18    GREENVILLE,ME       CESSNA 172          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 24, 238
        TIME - 1340                    N9921Q              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 24 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GREENVILLE
        DEPARTURE POINT             INTENDED DESTINATION
          CLEVELAND,OH                GREENVILLE,ME
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        REMARKS- GEAR COLLAPSED AFTER AIRCRAFT RAN OFF RUNWAY.
```

## Aircraft

- Registration: [N9921Q](https://openairdocs.org/deregistered/N9921Q-1999-01-22), registration cancelled 1999-01-22, S/N 17265865 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Greenville

## 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 19780818021809A](https://openairdocs.org/incident/19780818021809A), Aug 18, 1978: Cessna 172M, Greenville, PA, Substantial damage. Gear collapsed after aircraft ran off runway.

## Other investigations on N9921Q (2)

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 CHI80FEI14](https://openairdocs.org/ntsb/CHI80FEI14), Apr 22, 1980: Cessna 172M (N9921Q), Oberlin, OH, substantial damage
- [NTSB CHI77FEI09](https://openairdocs.org/ntsb/CHI77FEI09), Jan 5, 1977: Cessna 172 (N9921Q), Middlefield, OH, 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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