GAA19CA523

NTSB accident investigation · Cessna A185 · San Carlos, CA · September 3, 2019

Accident · No injuriesData collectionFinal report
Date
September 2, 2019, 18:40 local (Sep 3, 2019, 01:40 UTC)
Place
San Carlos, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N34GECessna A185
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 17, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Case key
100198

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna A185F: 71 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna A185F: 56 casesAll aircraft: 3,958 casesProbable cause

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 reported that, during the landing roll, the airplane encountered a wind gust from the left and then started to veer left. The pilot corrected with full application of right rudder, but it did not stop the left veer. The airplane ground looped to the left, and the right wing stuck the ground. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot in the tailwheel-equipped airplane reported that, during the landing roll, the airplane encountered a wind gust from the left. The pilot corrected with full application of the right rudder, but he did not stop the airplane's left veer. The airplane ground-looped to the left and the right wing stuck the ground. The airplane sustained substantial damage to the right wing. The airport's METAR reported that about the time of the accident, the wind was from 260° at 8 knots. The pilot landed on runway 30. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N34GE
Reported as
Cessna A185 (F)
Category
Airplane
Serial number
18504129
Built
1980
Airframe hours
6,128.4
Engine
Continental IO-550-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 1, 2019
Departed
CPU · San Andres, CA
Destination
SQL · San Carlos, CA
Airport
SQL · San Carlos, runway 30, 2,621 × 75 ft, asphalt
Equipment
ADS-B, Handheld GPS, Onboard weather, Stall warning system

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
60
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
June 20, 2018
Seat
Left
Restraint
3-point
Flight hours
1,344 total · 207 in this make and model · 40 in the last 90 days · 13 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 54 °F
Altimeter
29.88 inHg
Observed at
KSQL

Docket · 2

The files NTSB released with the investigation on January 3, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.1 MB in all.