- Date
- May 3, 2010, 16:00 local (23:00 UTC)
- Place
- Yuba City, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N6018TAyres S2R-T34
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 22, 2010
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- FAA Sacramento FSDO
- FAA report
- 20100503033859A
- Case key
- 75930
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to maintain directional control during the landing roll.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot stated that during departure for an aerial application flight the gearbox chip detector light illuminated approximately five miles from the runway. The pilot elected to reverse course and return to the airport. The airplane landed with a reported tailwind on runway 34. According to the pilot, during the landing roll the nose of the airplane made a sharp left turn as beta and braking were initiated. The airplane skidded and exited the left side of the runway into a field and impacted a berm. The airplane sustained substantial damage to the wings. Shortly after the accident the operator stated that the pilot landed with a tailwind. The pilot subsequently reported winds of 300 degrees at 12 knots. The closest weather reporting station is located 7 miles east at Marysville. The reported winds at Marysville at the time of the accident were 140 degrees at 14 knots gusting to 17 knots. The operator also stated that there were no known mechanical failures and that there were parallel and equal skid marks left on the runway by the airplane as it decelerated.
Factual narrative
The pilot stated that during departure for an agricultural application flight the gearbox chip detector light illuminated approximately five miles from the runway. The pilot elected to reverse course and return to the airport. The airplane landed with a reported tailwind on runway 34. According to the pilot, during the landing roll the nose of the airplane made a sharp left turn as beta and braking were initiated. The airplane skidded and exited the left side of the runway into a field and impacted a berm. The airplane sustained substantial damage to the wings. Shortly after the accident the operator stated that the pilot landed with a tailwind. The pilot subsequently reported winds of 300 degrees at 12 knots. The closest weather reporting station is located 7 miles east at Marysville. The reported winds at Marysville at the time of the accident were 140 degrees at 14 knots gusting to 17 knots. The operator also stated that there were no known mechanical failures and that there were parallel and equal skid marks left on the runway by the airplane as it decelerated.
Aircraft
- Registration
- N6018T
- Reported as
- Ayres S2R-T34
- Category
- Airplane
- Serial number
- T41-192
- Airframe hours
- 6,734
- Engine
- Pratt & Whitney Canada PT6, 850 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- South Delta Aviation Inc
- Registered owner
- South Delta Aviation Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · April 23, 2010
- Departed
- CA73 · Yuba City, CA
- Destination
- CA73 · Yuba City, CA
- Flight plan
- Company VFR
- Airport
- CA73 · Vanderford Ranch CO Airport, runway 34, 3,220 × 48 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 65
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- April 1, 2009
- Seat
- Single
- Flight hours
- 33,500 total · 9,200 in this make and model · 30 in the last 90 days · 20 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 300° at 12 knots, gusting 15
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F, dew point 50 °F
- Altimeter
- 30.05 inHg
- Observed at
- KMYV, 7 nm away
Docket · 2
The files NTSB released with the investigation on June 7, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 348 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.