# Accident 20180825015389A: Cessna 170B, Prineville, OR, August 25, 2018

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 25, 2018, 12:27 local time
- Place: Prineville, OR
- Damage: Substantial damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 44.2878° N, 120.9053° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=44.2878&lon=-120.9053&mi=10
- Aircraft: N4569C, registered now (https://openairdocs.org/aircraft/N4569C) (OpenAirDocs)
- Registry model: Cessna 170B (registry code 2072306, https://openairdocs.org/model/cessna-170b) (OpenAirDocs)
- Registry engine: Lycoming O-360-A1A (registry code 41594, https://openairdocs.org/engine/lycoming-o-360-a1a) (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Reported engine: LYCOMING O-360-A1A
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 175 total, 175 in this make and model, 20 in the last 90 days
- NTSB investigation: [NTSB GAA18CA509](https://openairdocs.org/ntsb/GAA18CA509) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20180825015389A

## Narrative

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

AIRCRAFT ON APPROACH TO GRAVEL RUNWAY 33 TO THE LEFT OF RUNWAY.  WITNESS STATED APPROACH PATH APPEARED UNSTABLE WITH NOSE HIGH.

FOUR FOOT LONG TIRE MARKS IN GRAVEL INDICATE AIRCRAFT TOUCHED DOWN SLANTED LEFT OF CENTER OF RUNWAY ALIGNMENT.

SECOUND SET OF DISTURBED GROUND TIRE MARKS WERE 100 FEET FROM INITIAL POINT OF CONTACT AND FIVE FEET LONG INDICATED AIRCRAFT BOUNCED AGAIN.  NO INDICATION OF TAILWHEEL CONTACTING GROUND.

APPROXIMATELY 150 FEET FROM SECOND POINT OF CONTACT TIRE MARKS IN GRAVEL INDICATE AIRCRAFT ON GROUND.  THESE MARKS EXTEND 200 FEET VEERING TO LEFT THEN ABUPTLY TURNING RIGHT.  ABOUT 50 FEET BEYOND, A 6 FOOT SKID MARK IN GRAVEL INDICATE BRAKES WERE APPLIED.

AIRCRAFT GROUND LOOPED SKIDDING TO NORTHEAST BUT POINTING SOUTHEAST AS LEFT MAIN TIRE CONTACTED THE RAISED EDGE OF RUNWAY PAVEMENT.  LEFT TIRE, WHEEL, AXLE AND BRAKE ASSEMBLY SEPERATE FROM LEFT MAIN SPRING LEG MAKING A 2 FOOT LONG GOUGE IN RUNWAY PAVEMENT.  MAIN LANDING GEAR SPRING ATTACH BOX WAS BENT AND TORN.  AIRCRAFT TIPPED ONTO SPINNING PROPELLER AND LEFT WING COMING TO A STOP TIPPED ONTO NOSE AND LEFT WING.  PILOT AND PASSENGER EXITED AIRCRAFT.

PILOT STATED HE HAD RECENTLY PURCHASED THIS AIRCRAFT WITH THESE WHEELS AND TIRES INSTALLED.  PRIOR OWNER HAD PROVIDED LIMITED TRAINING TO HIM ON THIS CONFIGURATION AND HE HAD PRACTICED SEVERAL TAKEOFFS AND LANDINGS PRIOR TO THIS FLIGHT WITH A PASSENGER.  PILOT STATED THIS APPROACH WAS FASTER AND STEEPER THAN PREVIOUS AND HE HAD DIFFICULTY CORRECTING WITH BRAKES AS AIRCRAFT BOUNCED AND SWERVED

## 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 GAA18CA509](https://openairdocs.org/ntsb/GAA18CA509), Aug 25, 2018: Cessna 170 (N4569C), Prineville, OR, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll.

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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