LAX98LA290

NTSB accident investigation · Weber-Mustang II Diamond · Taft, CA · September 12, 1998

Accident · No injuriesLimited investigationFinal report
Date
September 12, 1998, 15:35 local (22:35 UTC)
Place
Taft, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N10AWWeber-Mustang II Diamond
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 1999
Report
Approved by Office Director
FAA report
19980912023709A
Case key
43957

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 the crosswind condition and failure to maintain proper runway alignment during the takeoff roll.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterTakeoff - roll/run
Weather condition - crosswind
Compensation for wind conditions - inadequatePilot in commandCause
Proper alignment - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - high vegetation
Gear collapsedTakeoff - roll/run
Landing gear - overload

Analysis

The pilot reported that during the takeoff roll on the south-facing runway, the aircraft drifted off to the left side of the runway. The left wingtip impacted the bushes and the aircraft swerved left into the brush off the runway. The landing gear collapsed. The pilot reported that the winds at the time of the accident were from approximately 090 degrees at 7 knots. The pilot did not report any mechanical malfunction with the aircraft prior to the accident.

Factual narrative

On September 12, 1998, at 1535 hours Pacific daylight time, a Weber-Mustang II Diamond, N10AW, ground looped on takeoff at a private airstrip 5 miles east of the Taft-Kern County Airport, Taft, California. The aircraft sustained substantial damage. The commercial pilot and passenger, the sole occupants, were not injured. The personal flight was originating at the time of the accident and no flight plan was filed. Visual meteorological conditions prevailed.

The pilot reported that he was taking off on the south-facing runway. During the takeoff roll, the aircraft drifted off to the left side of the runway. The left wingtip impacted the bushes and the aircraft swerved left into the brush off the runway. The landing gear collapsed. The pilot reported that the winds at the time of the accident were from approximately 090 degrees at 7 knots. The pilot did not report any mechanical malfunction with the aircraft prior to the accident.

Aircraft

Registration
N10AW
Reported as
Weber-Mustang II Diamond
Category
Airplane, amateur-built
Serial number
265
Airframe hours
950
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Michael Van Pray Jr
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 2, 1998 · 50 hours before
Departed
L71 · California City, CA
Airport
Private Airstrip, runway 18, 2,400 × 30 ft, dirt

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
31
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,500 total · 250 in this make and model · 4,200 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 52 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.