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NTSB Report
April 17, 2007 · Maule MT-7-235 · N3115U
Concord, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
April 17, 2007
Injury Outcomes
No injuries (1 uninjured)
Location
Concord, CA
Aircraft
Maule MT-7-235
Tail Number
N3115U
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA07CA104
The pilot reported that the tower informed him the winds were from 250 degrees at 25 mph with gusts up to 30 mph. He aborted his first approach to runway 19R. On the second approach, he had "good rudder and aileron control at the 80 mph approach speed." At approximately 40 feet above ground level (agl), he encountered "a strong wind shear" and the airplane dropped to an altitude of 10 feet agl. The pilot added power and landed the airplane on the runway. At that time, a "very strong gust of wind" lifted the right wing and pushed the airplane towards the left side of the runway. The pilot attempted to regain control, however, he was not successful, and the airplane continued to the left "into a ground loop off of the runway." The nose landing gear collapsed, and the airplane came to rest nose down. The recorded winds at the airport near the time of the accident were from 260 degrees at 24 knots with gusts to 30 knots.
NTSB Probable Cause
The pilot's failure to maintain directional control during landing, resulting in a ground loop/swerve and collapse of the nose landing gear. A contributing factor was the gusty wind condition.
Full Narrative
The pilot reported that the tower informed him the winds were from 250 degrees at 25 mph with gusts up to 30 mph. He aborted his first approach to runway 19R. On the second approach, he had "good rudder and aileron control at the 80 mph approach speed." At approximately 40 feet above ground level (agl), he encountered "a strong wind shear" and the airplane dropped to an altitude of 10 feet agl. The pilot added power and landed the airplane on the runway. At that time, a "very strong gust of wind" lifted the right wing and pushed the airplane towards the left side of the runway. The pilot attempted to regain control, however, he was not successful, and the airplane continued to the left "into a ground loop off of the runway." The nose landing gear collapsed, and the airplane came to rest nose down. The recorded winds at the airport near the time of the accident were from 260 degrees at 24 knots with gusts to 30 knots.
Flight
Event TypeAccident
Event Time15:50 PDT
Nearest AirportBuchanan Field (0nm)
Runway19R
Runway Length5001 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftMaule MT-7-235
Tail NumberN3115U
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-W1A5 · Reciprocating
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 42 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 24 kt, gusting 30 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F / 36 C
Altimeter30.17 inHg
Observation Time22:53
Weather SourceWFAC