LAX08CA194

NTSB accident investigation · Maule MX-7-180A · Angwin, CA · June 21, 2008

Accident · No injuriesData collectionFinal report
Date
June 21, 2008, 10:00 local (17:00 UTC)
Place
Angwin, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1993FMaule MX-7-180A
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080621834469A
Case key
68315

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 directional control.

Findings · 5

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.

Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Not specifiedMaule MX-7-180A: 1 caseAll aircraft: 1,008 cases
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedMaule MX-7-180A: 1 caseAll aircraft: 184 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedMaule MX-7-180A: 7 casesAll aircraft: 3,958 casesProbable cause
Object/animal/substance: fence/fence postEnvironmental issues › Physical environment · Not specifiedMaule MX-7-180A: 1 caseAll aircraft: 313 cases
Object/animal/substance: poleEnvironmental issues › Physical environment · Not specifiedMaule MX-7-180A: 1 caseAll aircraft: 142 cases

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 lost directional control during the initial takeoff roll on runway 34 in a tailwheel-equipped airplane. He lifted the tail, and the airplane turned sharply to the left. He applied right rudder and braking, left aileron control deflection, and reduced the throttle to idle; however, directional control was not regained. The airplane departed the left side of the runway and struck a pole. The left wing contacted the ground, and the airplane slid into a cattle fence, causing substantial damage to the fuselage. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe or engine. He added that the winds were from 290 degrees at 7 miles per hour.

Factual narrative

The pilot reported that he was taking off on runway 34 in a tailwheel equipped airplane. He lifted the tail during the roll, and shortly thereafter, the airplane turned sharply to the left. The pilot applied right rudder and left aileron control deflection, then applied right brake and reduced the throttle to idle. The airplane departed the left side of the runway and struck a midfield windsock pole, damaging the left gear. The left wing contacted the ground and the airplane slid into a cattle fence, causing substantial damage to the fuselage. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe or engine. He added that the winds were from 290 degrees at 7 miles per hour. In the section titled RECOMMENDATION (How could this accident have been prevented) of the pilot's written report (NTSB Pilot/Operator Report, Form 6120.1), the pilot stated that he could have kept the tail on the ground longer for better directional control. He also thought that he could have departed from runway 16 with a slight tailwind, but with a right crosswind to counteract left turning tendencies.

Aircraft

Registration
N1993F
Reported as
Maule MX-7-180A
Category
Airplane
Serial number
20003C
Airframe hours
1,264.4
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 1, 2008
Departed
2O3 · Angwin, CA
Airport
2O3 · Virgil O Parrett Field, runway 34, 3,217 × 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
47
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Last flight review
December 1, 2007
Seat
Left
Flight hours
149 total · 103 in this make and model · 44 in the last 90 days · 8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 39 °F
Altimeter
29.93 inHg
Observed at
ksts, 18 nm away

FAA reports on this event · 1

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