# Accident 20151225023259A: Waco YMF, Fullerton, CA, December 25, 2015

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 25, 2015, 15:35 local time
- Place: Fullerton, CA
- Damage: Substantial damage
- Phase of flight: Landing: Rollout
- Operating rules: General operating rules (Part 91)
- Location: 33.8725° N, 117.9772° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=33.8725&lon=-117.9772&mi=10
- Aircraft: N99Y, registered now (https://openairdocs.org/aircraft/N99Y) (OpenAirDocs)
- Registry model: Waco YMF (registry code 9600411, https://openairdocs.org/model/waco-ymf) (OpenAirDocs)
- Registry engine: Jacobs R755B series (registry code 35007, https://openairdocs.org/engine/jacobs-r755b-series) (OpenAirDocs)
- Reported make and model: WACO YMF
- Reported engine: JACOBS R755B SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 403 total, 77 in this make and model, 6 in the last 90 days
- NTSB investigation: [NTSB GAA16CA089](https://openairdocs.org/ntsb/GAA16CA089) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20151225023259A

## Narrative

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

AFTER TOUCHDOWN AND DURING ROLLOUT AFTER A NORMAL APPROACH TO RUNWAY 24 AT FULLERTON AIRPORT IN GUSTY WIND CONDITIONS, THE AIRCRAFT, N99Y, ENTERED A GROUND LOOP CONDITION, VEERED TO THE RIGHT CAUSING THE LEFT LOWER WING TIP TO CONTACT THE RUNWAY.  PILOT WAS UNABLE TO CORRECT WITH RUDDER/AILERON INPUTS AND BRAKES WERE APPLIED.  THE RIGHT MAIN WHEEL SKIDDED AS EVIDENCE OF A SKID MARK ON THE RUNWAY.  THE AIRCRAFT EXITED THE RUNWAY AND ONTO THE UNPAVED DIRT AREA.  UPON CONTACT WITH THE DIRT, THE LEFT MAIN GEAR COLLAPSED UNDER THE FUSELAGE, THE LEFT LOWER WING BENT BACK AND THE AIRCRAFT CAME TO REST IN THE DIRT WITH THE TAIL WHEEL STILL CONTACTING THE RUNWAY.

## 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 GAA16CA089](https://openairdocs.org/ntsb/GAA16CA089), Dec 25, 2015: Waco YMF (N99Y), Fullerton, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll.

## Other reports on N99Y (3)

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

- [Accident 19890203002519A](https://openairdocs.org/incident/19890203002519A), Feb 3, 1989: Waco YMF (N99Y), Key West, FL, Substantial damage. During tight low altitude turns, over water to spot fish, lost control hit water inverted.
- [Accident 19880713027949A](https://openairdocs.org/incident/19880713027949A), Jul 13, 1988: Waco YMF (N99Y), Key West, FL, Substantial damage. Collided with a vehicle while turning around at operators establishment after landing. Sustained substantial damage
- [Accident 19861015048809A](https://openairdocs.org/incident/19861015048809A), Oct 15, 1986: Waco YMF (N99Y), Key West, FL, Substantial damage. The aircraft flipped over on landing rollout. The cause for the occurrence is undetermined. Suspect parking brake.

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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