# Accident 19780818021809A: Cessna 172M, Greenville, PA, August 18, 1978

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 18, 1978
- Place: Greenville, PA
- Airport: Greenville
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Location: 41.4468° N, 80.3912° W: Placed by OpenAirDocs at GREENVILLE MUNI (4G1), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4468&lon=-80.3912&mi=10
- Aircraft: N9921Q, a cancelled registration (https://openairdocs.org/deregistered/N9921Q-1999-01-22) (OpenAirDocs)
- Registry model: Cessna 172M (registry code 2072418, https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Reported make and model: CESSNA 172M
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 238 total, 24 in this make and model, 6 in the last 90 days
- NTSB investigation: [NTSB NYC78FGM46](https://openairdocs.org/ntsb/NYC78FGM46-139632) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19780818021809A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

GEAR COLLAPSED AFTER AIRCRAFT RAN OFF RUNWAY.

## The NTSB's investigation of this event (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 NYC78FGM46](https://openairdocs.org/ntsb/NYC78FGM46-139632), Aug 18, 1978: Cessna 172 (N9921Q), Greenville, ME, substantial damage

## Other reports on N9921Q (2)

Matched to the same aircraft by N-number and date.

- [Accident 19800422009909A](https://openairdocs.org/incident/19800422009909A), Apr 22, 1980: Cessna 172M (N9921Q), Oberlin, OH, Substantial damage. Unable to stop on runway. Tried to go around with carb heat on. Aborted off end of runway, nosed over in soft field
- [Accident 19770105000219A](https://openairdocs.org/incident/19770105000219A), Jan 5, 1977: Cessna 172M (N9921Q), Middlefield, OH, Substantial damage

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.