# Accident 19890707021169A: Scwzer G164B, Guymon, OK, July 7, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 7, 1989, 19:15 local time
- Place: Guymon, OK
- Airport: Guymon Municipal Airport
- Damage: Substantial damage
- Phase of flight: Low Level Operations
- Operating rules: Agricultural (Part 137)
- Operator: VHHG
- Location: 36.6793° N, 101.4792° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=36.6793&lon=-101.4792&mi=10
- Aircraft: N788Y, a cancelled registration (https://openairdocs.org/deregistered/N788Y-1989-12-19) (OpenAirDocs)
- Registry model: Grumman G-164 (registry code 3952702, https://openairdocs.org/model/grumman-g-164) (OpenAirDocs)
- Reported make and model: SCWZER G164B
- Reported engine: PWA R985AN12B
- Fatal injuries: 0
- Pilot flight hours: 12,000 total, 2,500 in this make and model, 120 in the last 90 days
- NTSB investigation: [NTSB FTW89DPJ08](https://openairdocs.org/ntsb/FTW89DPJ08) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19890707021169A

## Narrative

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

ENGINE SEPARATED FROM AIRCRAFT DURING PULLUP FROM SPRAY RUN. TOP MOUNTS BROKE IN FATIGUE. AIRCRAFT IMPACT ON BELLY.

## 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 FTW89DPJ08](https://openairdocs.org/ntsb/FTW89DPJ08), Jul 8, 1989: Grumman G-164 (N788Y), Guymon, OK, substantial damage. Probable cause: FAILURE OF THE UPPER RIGHT ENGINE MOUNT (FIREWALL ATTACH BOLT) DUE TO FATIGUE, AND FAILURE OF THE LOWER RIGHT MOUNTING BOLT FOR AN UNKNOWN REASON, WHICH ALLOWED OVERLOAD FAILURE OF THE TWO REMAINING…

## Other reports on N788Y (1)

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

- [Accident 19860627028399A](https://openairdocs.org/incident/19860627028399A), Jun 27, 1986: Scwzer G164 (N788Y), Hooker, OK, Substantial damage. Flipped over upon striking soft dirt after landing. Undershot suitable landing area.

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.

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