# Accident 20010811020739A: Scwzer G164B, Moseslake, WA, August 11, 2001

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 11, 2001, 07:30 local time
- Place: Moseslake, WA
- Damage: No damage
- Operating rules: Agricultural (Part 137)
- Operator: WPZG
- Location: 47.1708° N, 119.7991° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=47.1708&lon=-119.7991&mi=10
- Aircraft: N6774Q, registered now (https://openairdocs.org/aircraft/N6774Q) (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: NONE (registry code 00000, https://openairdocs.org/engine/none) (OpenAirDocs)
- Reported make and model: SCWZER G164B
- NTSB investigation: [NTSB SEA01LA149](https://openairdocs.org/ntsb/SEA01LA149) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010811020739A

## Narrative

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

(-23) THE PILOT STATED ON TAKE-OFF, THE ENGINE LOST POWER, THE WINDSCREEN WAS COVERED WITH OIL, AND THE ENGINE LOST ALL POWER. THERE WERE NO ABNORMAL SOUNDS OR NOISES FROM THE ENGINE. THE AIRCRAFT RAN OFF THE END OF THE RUNWAY AND CAME TO REST UPSIDE DOWN. THE AIRCRAFT WRECKAGE WAS MOVED TO GUSTIN AVIATION, LEWISTON, ID FOR EXAMINATION BY THE FAA AT THE REQUEST OF THE NTSB. THE #5 INTAKE MANIFOLD CONTAINED A CONSIDERABLE AMOUNT OF ENGINE OIL, AND GASOLINE. ALSO PRESENT WAS WHAT HAD THE APPEARANCE OF METAL INSIDE THE MAINIFOLD. THE REMAINING INTAKE TUBES WERE WET INSIDE WITH ENGINE OIL. THE ENGINE HAD 250 HOURS SINCE MAJOR OVERHAUL AND IS BEING RETURNED TO AERO-RECIP, A CANADIAN REPAIR STATION LOCATED IN WINNAPEG, CANADA WHERE THE OVERHAUL WAS ORIGINALLY PERFORMED.

## 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 SEA01LA149](https://openairdocs.org/ntsb/SEA01LA149), Aug 11, 2001: Grumman G-164B (N6774Q), Quincy, WA, substantial damage. Probable cause: The failure of the impeller assembly as a consequence of impeller rub and binding within the impeller collector case for undetermined reasons.

## Other reports on N6774Q (3)

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

- [Accident 20100218028129A](https://openairdocs.org/incident/20100218028129A), Feb 18, 2010: Grumman Acf G-164B (N6774Q), Colfax, WA, Substantial damage. This accident occured on the first flight of the day. The air temperture was aproximately 35-36 degrees and there was high moisture in the area with patches of…
- [Accident 19950728046879A](https://openairdocs.org/incident/19950728046879A), Jul 28, 1995: Scwzer G164B (N6774Q), Ephrata, WA, Substantial damage. Drifted off ag strip landing in crosswind. Nose dug into soft sand. Aircraft nosed over. Bent wing and stabilizer.
- [Accident 19900819034019A](https://openairdocs.org/incident/19900819034019A), Aug 19, 1990: Scwzer G164B (N6774Q), Westley, CA, Destroyed. Lower left wing struck a chain link fence on takeoff from an ag strip. Impacted ground hard and flipped over.

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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