WPR13LA314

NTSB accident investigation · Luy Wayman Lockwood Aircam · Groveland, CA · July 7, 2013

Accident · Serious injuriesLimited investigationFinal report
Date
July 7, 2013, 12:31 local (19:31 UTC)
Place
Groveland, CA
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N94CLuy Wayman Lockwood Aircam
Defining event
Approach-VFR go-around: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report June 11, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20130707014229A
Case key
87397

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 inadequate compensation for a crosswind and failure to maintain airplane control during a go-around.

Findings · 4

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 · PilotLuy Wayman KIT: 1 caseAll aircraft: 9,295 casesProbable cause
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Incorrect use/operationLuy Wayman KIT: 1 caseAll aircraft: 184 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeLuy Wayman KIT: 1 caseAll aircraft: 1,008 cases
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedLuy Wayman KIT: 1 caseAll aircraft: 1,269 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 was practicing touch-and-go landings with a direct 12-knot crosswind. Immediately after touchdown, a gust of wind impacted the airplane, and its left wing rose about 45 degrees. The pilot applied power for a go-around, and the airplane became airborne. The pilot did not compensate for the crosswind, and the airplane drifted sideways and impacted a tree near the runway. The airplane's right wing separated and remained in the tree, and the fuselage and left wing fell to the ground. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On July 7, 2013, at 1231 Pacific daylight time, a Luy Wayman Lockwood Air cam twin engine experimental amateur-built airplane, N94C, was substantially damaged when it impacted a tree during a go-around at Pine Mountain Lake Airport (E45), Groveland, California. The private pilot was seriously injured and his passenger received minor injuries. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed for the local flight, which had originated approximately 1 hour before the accident. A flight plan had not been filed. The pilot reported that he had departed from Pine Mountain and flown to Columbia Airport (O22), which was about 15 nautical miles away. He practiced several touch-and-go landings and returned to Pine Mountain for more practice landings. The pilot said the wind at Pine Mountain was a direct crosswind of about 12 knots. On his second approach, shortly after touchdown, a gust of wind impacted the airplane. He said the left wing went up about 45 degrees and the airplane pivoted a bit to the right on its right main landing gear. He applied power for a go-around, and the airplane became airborne. The airplane was pushed sideways by the wind, and it struck a tree about 1,400 feet from the approach end of the runway. The airplane's right wing separated from the fuselage and remained in the tree. The fuselage and left wing fell to the ground and came to rest inverted. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N94C
Reported as
Luy Wayman Lockwood Aircam
Category
Airplane
Serial number
AC-102
Built
2001
Airframe hours
385
Engines
Rotax 912, 80 horsepower, reciprocatingRotax 912 ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Merolla Richard L
Registered owner
Merolla Richard L
Airworthiness certificate
Special, Experimental (Special); Standard, Normal
Last inspection
Condition · January 10, 2013
Departed
E45 · Groveland, CA
Destination
E45 · Groveland, CA
Airport
E45 · Pine Mountain Lake Airport, runway 27, 3,624 × 50 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
54
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, With waivers/limitations
Seat
Front
Flight hours
882 total · 131 in this make and model · 20 in the last 90 days · 15 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 8 knots
Visibility
10 statute miles
Temperature
91 °F, dew point 55 °F
Altimeter
29.78 inHg
Observed at
MER, 35 nm away

Docket · 6

The files NTSB released with the investigation on May 21, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.1 MB 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.