# Accident 20100218028129A: Grumman Acf G-164B, Colfax, WA, February 18, 2010

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 18, 2010, 08:38 local time
- Place: Colfax, WA
- Airport: Port Of Whitman
- Damage: Substantial damage
- Phase of flight: Takeoff: Rotation
- Operating rules: Agricultural (Part 137)
- Operator: WB8G
- Location: 46.8586° N, 117.4139° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=46.8586&lon=-117.4139&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: GRUMMAN ACF G-164B
- Reported engine: PRATT & WHITNEY R-1340
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 4,700 total, 2,500 in this make and model, 25 in the last 90 days
- NTSB investigation: [NTSB WPR10LA139](https://openairdocs.org/ntsb/WPR10LA139) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20100218028129A

## Narrative

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

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 FROST.  THE AIRCRAFT HAD TO BE CLEANED OF FROST BEFORE THE FIRST FLIGHT. THE AIRCRAFT WAS LOADED WITH  APPROXIMATELY 2000 POUNDS OF DRY FERTILIZER. DURING TAXI TO THE RUNWAY PILOT CONDUCTED A "ROLLING" RUN-UP CHECK.  AFTER LINING UP WITH RUNWAY THE PILOT SLOWLY APPLIED POWER TO NORMAL TAKEOFF SETTINGS DUE TO LOW OIL TEMP AND HIGH OIL PRESSURE.  AT MID-FIELD PILOT FELT POWER WAS NOT THERE AND APPLIED FULL POWER.  NEAR END OF RUNWAY PILOT PULLED AIRCRAFT OFF RUNWAY AND FOUND IT WAS NOT GOING TO FLY.  HE PULLED THROTTLE TO IDLE AND ENGINE DIED.  AIRCRAFT LANDED IN VERY SOFT WET PLOWED FIELD APPROXIMATELY 200 YARDS OFF END OF RUNWAY.  AIRCRAFT FLIPPED OVER NOSE 1 AND 1/4 TIMES AND ENDED UP ON NOSE AND UPPER WING.

## 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 WPR10LA139](https://openairdocs.org/ntsb/WPR10LA139), Feb 18, 2010: Grumman Acft ENG Cor-Schweizer G-164B (N6774Q), Colfax, WA, substantial damage. Probable cause: A partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.

## Other reports on N6774Q (3)

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

- [Accident 20010811020739A](https://openairdocs.org/incident/20010811020739A), Aug 11, 2001: Scwzer G164B (N6774Q), Moseslake, WA, No damage. (-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…
- [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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