WPR15CA094

NTSB accident investigation · Diamond Aircraft Ind DA 40 · La Verne, CA · January 27, 2015

Accident · No injuriesData collectionFinal report
Date
January 27, 2015, 15:00 local (23:00 UTC)
Place
La Verne, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N805ERDiamond Aircraft Ind DA 40
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report April 21, 2015
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20150127002299A
Case key
90661

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 student pilot's loss of directional control during takeoff from a runway, which resulted in a collision with a sign.

Findings · 3

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotAll aircraft: 9,295 casesProbable cause
Object/animal/substance: sign/markerEnvironmental issues › Physical environment · Contributed to outcomeAll aircraft: 214 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 student pilot reported that the purpose of the solo flight was for him to practice soft-field takeoffs from a hard surface runway. During the takeoff roll, the airplane encountered a sudden gust of wind and the student pilot was unable to maintain directional control. The airplane veered to the left of the runway centerline and continued off the surface, colliding with several signs before coming to rest in a grassy area. The airplane sustained substantial damage to the left wing. The student pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. The student pilot further reported that the accident could have been prevented if he was more vigilant of sudden gusts of wind even in reported calm wind conditions.

Factual narrative

The student pilot reported that the purpose of the solo flight was for him to practice soft-field takeoffs from a hard surface runway. During the takeoff roll, the airplane encountered a sudden gust of wind and the student pilot was unable to maintain directional control. The airplane veered to the left of the runway centerline and continued off the surface, colliding with several signs before coming to rest in a grassy area. The airplane sustained substantial damage to the left wing. The student pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. The student pilot further reported that the accident could have been prevented if he was more vigilant of sudden gusts of wind even in reported calm wind conditions.

Aircraft

Registration
N805ER
Reported as
Diamond Aircraft Ind DA 40 (UNDESIGNAT)
Category
Airplane
Serial number
40.316
Built
2003
Airframe hours
4,495
Engine
Lycoming IO360 SER, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mile High LLC, doing business as So Cal Flying Club
Registered owner
Mile High LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 12, 2014
Departed
EMT · El Monte, CA
Destination
POC · La Verne, CA
Airport
POC · Brackett Field, runway 26L, 4,840 × 75 ft, asphalt
Equipment
Stall warning system

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Student pilot
Age
31
Injuries
None
Certificate
Student
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
78 total · 78 in this make and model · 10 as pilot in command · 37 in the last 90 days · 19 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 45 °F
Altimeter
30.15 inHg
Observed at
KPOC

Docket · 5

The files NTSB released with the investigation on April 14, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 939 KB 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.