# Accident 19900608019559A: Scwzer G164B, Buttonwillow, CA, June 8, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 8, 1990, 06:30 local time
- Place: Buttonwillow, CA
- Damage: Destroyed
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Agricultural (Part 137)
- Operator: RQGG
- Location: 35.4298° N, 119.4901° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=35.4298&lon=-119.4901&mi=10
- Aircraft: N6725K, registered now (https://openairdocs.org/aircraft/N6725K) (OpenAirDocs)
- Registry model: Grumman Acft ENG Cor-Schweizer G-164B (registry code 3952802, https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (OpenAirDocs)
- Registry engine: Pratt & Whitney R1340 series (registry code 52016, https://openairdocs.org/engine/pratt-whitney-r1340-series) (OpenAirDocs)
- Reported make and model: SCWZER G164B
- Reported engine: PWA R1340AN1
- Fatal injuries: 0
- Pilot flight hours: 12,000 total, 3,000 in this make and model, 150 in the last 90 days
- NTSB investigation: [NTSB LAX90DVA04](https://openairdocs.org/ntsb/LAX90DVA04) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900608019559A

## Narrative

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

NR7 CYLINDER FAILED ON THE RADIAL ENGINE. LOST POWER AND IMPACTED GROUND VERY HARD AND BURNED. WAS ON A TURN AROUND

## 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 LAX90DVA04](https://openairdocs.org/ntsb/LAX90DVA04), Jun 8, 1990: Grumman-Schweizer G-164B (N6725K), Buttonwillow, CA, destroyed. Probable cause: FAILURE OF THE #7 CYLINDER DUE TO A PRE-EXISTING CRACK. THE TERRAIN CONDITION WAS A RELATED FACTOR.

## Other reports on N6725K (3)

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

- [Accident 20110205002429A](https://openairdocs.org/incident/20110205002429A), Feb 5, 2011: Grumman Acf G-164B (N6725K), Buttonwillow, CA, Substantial damage. On 02-05-2011, 9.30AM (local) an aerial applicator , while conducting an aerial application operation, hit a standpipe (irrigation pipe) with its propeller.…
- [Accident 19870729040119A](https://openairdocs.org/incident/19870729040119A), Jul 29, 1987: Scwzer G164B (N6725K), Taft, CA, Substantial damage. Left wing struck a standpipe landing on a ag strip. Impact whirled aircraft around and collapsed the landing gear.
- [Accident 19780920027719A](https://openairdocs.org/incident/19780920027719A), Sep 20, 1978: Gulstm G164A (N6725K), Robbins, CA, 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.

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