- Date
- September 18, 2012, 17:00 local (Sep 19, 2012, 00:00 UTC)
- Place
- Lincoln, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N4777VBoeing A75N1(PT17)
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 19, 2012
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20120918021829A
- Case key
- 85090
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, which resulted in a ground loop.
Findings · 2
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 while landing, the airplane started diverting to the right. He corrected with full left rudder, but the airplane did not respond. He then applied full left brake, which caused an over correction. The airplane ground looped to the left, and the right lower wing contacted the runway, damaging the lower right wing spar. The pilot stated that the airplane and engine had no mechanical failures or malfunctions that would have precluded normal operations.
Factual narrative
The pilot stated that while landing, the airplane started diverting to the right. He corrected with full left rudder, but the airplane did not respond. He then applied full left brake, which caused an over correction. The airplane ground looped to the left, and the right lower wing contacted the runway, damaging the lower right wing spar. The pilot stated that the airplane and engine had no mechanical failures or malfunctions that would have precluded normal operations.
Aircraft
- Registration
- N4777V
- Reported as
- Boeing A75N1(PT17)
- Category
- Airplane
- Serial number
- 75-5733
- Airframe hours
- 2,142
- Engine
- Lycoming R-680-17, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Judd Donald C
- Registered owner
- Judd Donald C
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · June 21, 2012
- Departed
- O61 · Cameron Park, CA
- Destination
- KLHM · Lincoln, CA
- Flight plan
- Unknown
- Airport
- KLHM · Lincoln Regional Airport, runway 33, 6,000 × 100 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
- 62
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Seat
- Rear
- Flight hours
- 1,657 total · 395 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 315° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 88 °F, dew point 45 °F
- Altimeter
- 29.94 inHg
- Observed at
- KLHM
Docket · 1
The files NTSB released with the investigation on October 12, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 487 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.
Other investigations on N4777V · 1
Matched to the same aircraft by N-number and date.