Porterville Muni Airport
Aircraft Accident/Incident Report

Porterville, California 93257
Thursday, March 20, 2014 16:50 PDT

NTSB Narrative Summary Released at Completion of Accident

The student pilot reported that, during takeoff, he felt the airplane dip right. When he reduced the throttle and applied brakes, the airplane suddenly spun left and exited the runway. A witness located adjacent to the accident site reported that he observed the airplane veer left during the takeoff, that he heard the engine power reduce, and that he observed the right main landing gear begin to “flip around” as the airplane exited the left side of the runway. Subsequently, the airplane came to rest adjacent to the runway in the opposite direction of the takeoff; the right main landing gear had separated. Postaccident examination of the airplane did not reveal any preaccident mechanical anomalies that would have precluded normal operation. Skid marks observed on the runway were consistent with all three tires skidding left to the edge of the runway before the right main landing gear separated. Recorded weather information revealed that, about 5 minutes after the accident, the wind was about 10 degrees left of the runway heading at 6 knots.

NTSB Probable Cause Narrative

The student pilot’s failure to maintain directional control during takeoff.

Event Information

Type of Event Accident
Event Date 3/20/2014
Event Day of the Week Thursday
Time of Event 1650
Event Time Zone Pacific Daylight Time
Event City Porterville
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93257
Event Date Year 2014
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 360151N
Event Location Longitude 1190335W
Event Location Airport PORTERVILLE MUNI
Event Location Nearest Airport ID PTV
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 63
Airport Elevation 443
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2355 Coordinated Universal Time? Same as GMT
Direction of event from weather observation facility (degrees) 235
Weather Observation Facility ID KPTV
Elevation of weather observation facility 442
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation UTC
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.9
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KPTV 202355Z AUTO 29006KT 10SM CLR 26/01 A29
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 33179
NTSB Notification Source FAA WP Operation Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Apr 29 2014 6:11PM
User who most recently changed record eckd
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N817EV
NTSB Number WPR14LA141
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name EVEKTOR-AEROTECHNIK AS
Aircraft Model SPORTSTAR
Aircraft Series Identifier NO SERIES
Aircraft Serial Number 20070817
Certified Max Gross Weight 1320
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Sep 28 2013 12:00AM
Airframe hours since last inspection 40
Airframe Hours 680
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LIGHTEN UP AVIATION LLC
Aircraft Owner Street Address --
Aircraft Owner City STRATHMORE
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 932670336
Operator is an individual? Yes
Operator Name LIGHTEN UP AVIATION LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City STRATHMORE
Operator State CA
Operator Country USA
Operator Zip code 932670336
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code PTV
Departure City Porterville
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code PTV
Destination City Porterville
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 1 2014 6:55PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location 30
Runway Length 5960
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --